Select

El select del navegador con el aspecto del de coss ui.The browser's select with coss ui's look.

DiseñoDesign: coss ui (MIT) · select.tsxMITambos · densidaddensity media · sobriaMarkdown JSON

CódigoCode

<div class="c-select-field">
  <label class="c-select-label" for="sel-framework">Formato</label>
  <span class="c-select">
    <select class="c-select__field" id="sel-framework" name="format">
      <option value="1:1">Cuadrado · 1:1</option>
      <option value="4:5" selected>Póster · 4:5</option>
      <option value="9:16">Historia · 9:16</option>
      <option value="16:9">Pantalla · 16:9</option>
    </select>
    <svg class="c-select__icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="m7 15 5 5 5-5"/><path d="m7 9 5-5 5 5"/></svg>
  </span>
</div>
<div class="c-select-field">
  <label class="c-select-label" for="sel-country">País</label>
  <span class="c-select">
    <select class="c-select__field" id="sel-country" name="country" required>
      <option value="" disabled selected>Elige un país</option>
      <optgroup label="Sudamérica"><option>Argentina</option><option>Chile</option><option>Colombia</option><option>Perú</option></optgroup>
      <optgroup label="Centro y Norteamérica"><option>Guatemala</option><option>México</option></optgroup>
    </select>
    <svg class="c-select__icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="m7 15 5 5 5-5"/><path d="m7 9 5-5 5 5"/></svg>
  </span>
</div>

/* select · Componentes (MIRÓ Labs). Diseño de coss ui (MIT, © coss.com, antes Origin UI).
   Generado por tools/build_css.py desde select.tw.json. No editar a mano. Necesita tokens.css. */
.c-select__icon{pointer-events:none;position:absolute}
.c-select{position:relative}
.c-select-field{display:flex}
.c-select{display:inline-flex}
.c-select-label{display:inline-flex}
.c-select__icon{width:calc(var(--spacing)*4.5);height:calc(var(--spacing)*4.5)}
.c-select__field option{min-height:calc(var(--spacing)*8)}
.c-select{min-height:calc(var(--spacing)*9);width:100%}
.c-select-field{width:100%;max-width:calc(var(--spacing)*72)}
.c-select{min-width:calc(var(--spacing)*36)}
.c-select__field option{cursor:default}
.c-select-field{flex-direction:column}
.c-select{align-items:center}
.c-select-label{align-items:center}
.c-select-field{align-items:flex-start}
.c-select{justify-content:space-between;gap:calc(var(--spacing)*2)}
.c-select-field{gap:calc(var(--spacing)*2)}
.c-select-label{gap:calc(var(--spacing)*2)}
.c-select__field option{gap:calc(var(--spacing)*2)}
.c-select{border-radius:var(--radius)}
.c-select__field option{border-radius:calc(var(--radius) - 4px)}
.c-select{border-style:var(--tw-border-style);border-width:1px;border-color:var(--input);background-color:var(--background)}
.c-select__field option{padding-block:calc(var(--spacing)*1);padding-inline-start:calc(var(--spacing)*2);padding-inline-end:calc(var(--spacing)*4)}
.c-select{text-align:left;font-size:var(--text-base);line-height:var(--tw-leading,var(--text-base--line-height))}
.c-select__field option{font-size:var(--text-base);line-height:var(--tw-leading,var(--text-base--line-height))}
.c-select-label{font-size:var(--text-base);line-height:calc(var(--spacing)*4.5);--tw-font-weight:var(--font-weight-medium);font-weight:var(--font-weight-medium)}
.c-select{color:var(--foreground)}
.c-select-label{color:var(--foreground)}
.c-select__icon{opacity:.8}
.c-select{--tw-shadow-alpha:5%;--tw-shadow:0 1px 2px 0 var(--tw-shadow-color,#0000000d);box-shadow:var(--tw-inset-shadow),var(--tw-inset-ring-shadow),var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow)}
@supports (color:lab(0% 0 0)){
.c-select{--tw-shadow:0 1px 2px 0 var(--tw-shadow-color,lab(0% 0 0/.05))}
}
.c-select{--tw-ring-color:var(--ring)}
@supports (color:color-mix(in lab, red, red)){
.c-select{--tw-ring-color:color-mix(in oklab,var(--ring)24%,transparent)}
}
.c-select{transition-property:box-shadow;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration));--tw-outline-style:none;outline-style:none}
.c-select__field option{--tw-outline-style:none;outline-style:none}
.c-select{-webkit-user-select:none;user-select:none}
.c-select:not(:is(.dark *)){background-clip:padding-box}
.c-select:before{content:var(--tw-content);pointer-events:none;content:var(--tw-content);position:absolute;content:var(--tw-content);inset:calc(var(--spacing)*0);content:var(--tw-content);border-radius:calc(var(--radius-lg) - 1px)}
.c-select:not(:has(>.c-select__field:disabled)):not(:has(>.c-select__field:focus-visible)):not([aria-invalid=true]):not([data-pressed]):before{content:var(--tw-content);--tw-shadow:0 1px var(--tw-shadow-color,#0000000a)}
@supports (color:color-mix(in lab, red, red)){
.c-select:not(:has(>.c-select__field:disabled)):not(:has(>.c-select__field:focus-visible)):not([aria-invalid=true]):not([data-pressed]):before{--tw-shadow:0 1px var(--tw-shadow-color,color-mix(in oklab,var(--color-black)4%,transparent))}
}
.c-select:not(:has(>.c-select__field:disabled)):not(:has(>.c-select__field:focus-visible)):not([aria-invalid=true]):not([data-pressed]):before{box-shadow:var(--tw-inset-shadow),var(--tw-inset-ring-shadow),var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow)}
.c-select:has(>.c-select__field:focus-visible){border-color:var(--ring);--tw-ring-shadow:var(--tw-ring-inset,)0 0 0 calc(3px + var(--tw-ring-offset-width))var(--tw-ring-color,currentcolor);box-shadow:var(--tw-inset-shadow),var(--tw-inset-ring-shadow),var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow)}
.c-select[aria-invalid=true]{border-color:var(--destructive)}
@supports (color:color-mix(in lab, red, red)){
.c-select[aria-invalid=true]{border-color:color-mix(in oklab,var(--destructive)36%,transparent)}
}
.c-select:has(>.c-select__field:focus-visible)[aria-invalid=true]{border-color:var(--destructive)}
@supports (color:color-mix(in lab, red, red)){
.c-select:has(>.c-select__field:focus-visible)[aria-invalid=true]{border-color:color-mix(in oklab,var(--destructive)64%,transparent)}
}
.c-select:has(>.c-select__field:focus-visible)[aria-invalid=true]{--tw-ring-color:var(--destructive)}
@supports (color:color-mix(in lab, red, red)){
.c-select:has(>.c-select__field:focus-visible)[aria-invalid=true]{--tw-ring-color:color-mix(in oklab,var(--destructive)16%,transparent)}
}
.c-select:has(>.c-select__field:disabled){opacity:.64}
.c-select__field option:disabled{opacity:.64}
.c-select__field option:is(:hover,:focus-visible){background-color:var(--accent);color:var(--accent-foreground)}
@media (min-width:40rem){
.c-select__icon{width:calc(var(--spacing)*4);height:calc(var(--spacing)*4)}
.c-select__field option{min-height:calc(var(--spacing)*7)}
.c-select{min-height:calc(var(--spacing)*8);font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}
.c-select__field option{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}
.c-select-label{font-size:var(--text-sm);line-height:calc(var(--spacing)*4)}
}
.c-select:is(.dark *){background-color:var(--input)}
@supports (color:color-mix(in lab, red, red)){
.c-select:is(.dark *){background-color:color-mix(in oklab,var(--input)32%,transparent)}
}
.c-select:is(.dark *):not(:has(>.c-select__field:disabled)):not(:has(>.c-select__field:focus-visible)):not([aria-invalid=true]):not([data-pressed]):before{content:var(--tw-content);--tw-shadow:0 -1px var(--tw-shadow-color,#ffffff0f)}
@supports (color:color-mix(in lab, red, red)){
.c-select:is(.dark *):not(:has(>.c-select__field:disabled)):not(:has(>.c-select__field:focus-visible)):not([aria-invalid=true]):not([data-pressed]):before{--tw-shadow:0 -1px var(--tw-shadow-color,color-mix(in oklab,var(--color-white)6%,transparent))}
}
.c-select:is(.dark *):not(:has(>.c-select__field:disabled)):not(:has(>.c-select__field:focus-visible)):not([aria-invalid=true]):not([data-pressed]):before{box-shadow:var(--tw-inset-shadow),var(--tw-inset-ring-shadow),var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow)}
.c-select:is(.dark *)[aria-invalid=true]{--tw-ring-color:var(--destructive)}
@supports (color:color-mix(in lab, red, red)){
.c-select:is(.dark *)[aria-invalid=true]{--tw-ring-color:color-mix(in oklab,var(--destructive)24%,transparent)}
}
.c-select:is(:has(>.c-select__field:disabled),:has(>.c-select__field:focus-visible),:has(>.c-select__field[aria-invalid=true]),[data-pressed]){--tw-shadow:0 0 #0000;box-shadow:var(--tw-inset-shadow),var(--tw-inset-ring-shadow),var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow)}
/* propio */
.c-select__field{appearance:none;-webkit-appearance:none;width:100%;min-height:inherit;padding-inline:calc(var(--spacing)*3 - 1px) calc(var(--spacing)*9);background:transparent;border:0;border-radius:inherit;color:inherit;font:inherit;outline:none;cursor:pointer}
.c-select__field:disabled{cursor:not-allowed}
.c-select__field:invalid{color:color-mix(in oklab,var(--muted-foreground)72%,transparent)}
.c-select__field option{color:var(--foreground);background:var(--popover)}
@supports (appearance: base-select){
 .c-select__field,.c-select__field::picker(select){appearance:base-select}
 .c-select__field{display:flex;align-items:center}
 .c-select__field::picker-icon{display:none}
 .c-select__field::picker(select){margin-block:4px;padding:.25rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--popover);color:var(--popover-foreground);box-shadow:0 10px 15px -3px #0000000d,0 4px 6px -4px #0000000d;opacity:0;scale:.98;transition:opacity .15s,scale .15s,display .15s allow-discrete,overlay .15s allow-discrete}
 .c-select__field:open::picker(select){opacity:1;scale:1}
 @starting-style{.c-select__field:open::picker(select){opacity:0;scale:.98}}
 .c-select__field option{display:grid;grid-template-columns:1rem minmax(0,1fr);align-items:center}
 .c-select__field option::checkmark{content:"✓" / "";grid-column:1;font-size:.75rem}
 .c-select__field optgroup{padding:.375rem .5rem;font-size:var(--text-xs);font-weight:500;color:var(--muted-foreground)}
}
.c-select__icon{inset-inline-end:calc(var(--spacing)*3 - 1px)}

<!doctype html>
<html lang="es">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Select · Componentes</title>
<!-- Select · Componentes (MIRÓ Labs) · MIT · https://componentes-lovat.vercel.app/c/select/
     Diseño: coss ui (MIT) · select.tsx -->
<script>(function(){var d=document.documentElement,p=new URLSearchParams(location.search),q=p.get('theme');d.classList.toggle('dark',q?q==='dark':matchMedia('(prefers-color-scheme: dark)').matches);if(self!==top)d.classList.add('embed');addEventListener('message',function(e){if(e.data&&e.data.type==='componentes:theme')d.classList.toggle('dark',!!e.data.dark)});})();</script>
<style>
/* Componentes (MIRÓ Labs) · tokens. Tema de coss ui (MIT, © coss.com, antes Origin UI).
   Generado por tools/build_css.py. Tema oscuro: clase .dark en <html> (los componentes usan esa clase).
   Letra: la del sistema; cambia --font-sans para usar otra. */
:root{--animate-spin:spin 1s linear infinite;--aspect-video:16/9;--color-amber-400:lab(80.1641% 16.6016 99.2089);--color-amber-500:lab(72.7183% 31.8672 97.9407);--color-amber-700:lab(47.2709% 42.9082 69.2966);--color-background:var(--background);--color-black:#000;--color-blue-400:lab(65.0361% -1.42065 -56.9802);--color-blue-500:lab(54.1736% 13.3369 -74.6839);--color-blue-700:lab(36.9089% 35.0961 -85.6872);--color-card:var(--card);--color-card-foreground:var(--card-foreground);--color-cyan-900:lab(30.372% -13.1853 -18.7887);--color-emerald-400:lab(75.0771% -60.7313 19.4147);--color-emerald-500:lab(66.9756% -58.27 19.5419);--color-emerald-700:lab(44.4871% -41.0396 11.0361);--color-foreground:var(--foreground);--color-muted:var(--muted);--color-muted-foreground:var(--muted-foreground);--color-neutral-100:lab(96.52% -.0000298023 .0000119209);--color-neutral-400:lab(66.128% -.0000298023 .0000119209);--color-neutral-50:lab(98.26% 0 0);--color-neutral-500:lab(48.496% 0 0);--color-neutral-800:lab(15.204% 0 -.00000596046);--color-neutral-950:lab(2.75381% 0 0);--color-orange-600:lab(57.1026% 64.2584 89.8886);--color-primary:var(--primary);--color-purple-500:lab(52.0183% 66.11 -78.2316);--color-red-400:lab(63.7053% 60.745 31.3109);--color-red-500:lab(55.4814% 75.0732 48.8528);--color-red-700:lab(40.4273% 67.2623 53.7441);--color-rose-500:lab(56.101% 79.4328 31.4532);--color-teal-600:lab(55.0223% -41.0774 -3.90277);--color-white:#fff;--container-2xl:42rem;--container-3xl:48rem;--container-5xl:64rem;--container-lg:32rem;--container-md:28rem;--container-sm:24rem;--container-xl:36rem;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4,0,.2,1);--ease-in-out:cubic-bezier(.4,0,.2,1);--font-weight-bold:700;--font-weight-medium:500;--font-weight-normal:400;--font-weight-semibold:600;--radius-2xl:1rem;--radius-lg:var(--radius);--radius-md:calc(var(--radius) - 2px);--radius-xl:calc(var(--radius) + 4px);--spacing:.25rem;--text-2xl:1.5rem;--text-2xl--line-height:calc(2/1.5);--text-3xl:1.875rem;--text-3xl--line-height:calc(2.25/1.875);--text-4xl:2.25rem;--text-4xl--line-height:calc(2.5/2.25);--text-5xl:3rem;--text-5xl--line-height:1;--text-base:1rem;--text-base--line-height:calc(1.5/1);--text-lg:1.125rem;--text-lg--line-height:calc(1.75/1.125);--text-sm:.875rem;--text-sm--line-height:calc(1.25/.875);--text-xl:1.25rem;--text-xl--line-height:calc(1.75/1.25);--text-xs:.75rem;--text-xs--line-height:calc(1/.75);--tracking-tight:-.025em;--tracking-widest:.1em;--tw-shadow-color:#000}
:root{--font-sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;--font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
:root{--radius:.625rem;--background:var(--color-white);--foreground:var(--color-neutral-800);--card:var(--color-white);--card-foreground:var(--color-neutral-800);--popover:var(--color-white);--popover-foreground:var(--color-neutral-800);--primary:var(--color-neutral-800);--primary-foreground:var(--color-neutral-50);--secondary:#0000000a}
@supports (color:color-mix(in lab, red, red)){:root{--secondary:color-mix(in oklab,var(--color-black)4%,transparent)}}
:root{--secondary-foreground:var(--color-neutral-800);--muted:#0000000a}
@supports (color:color-mix(in lab, red, red)){:root{--muted:color-mix(in oklab,var(--color-black)4%,transparent)}}
:root{--muted-foreground:#686868}
@supports (color:color-mix(in lab, red, red)){:root{--muted-foreground:color-mix(in srgb,var(--color-neutral-500)90%,var(--color-black))}}
:root{--accent:#0000000a}
@supports (color:color-mix(in lab, red, red)){:root{--accent:color-mix(in oklab,var(--color-black)4%,transparent)}}
:root{--accent-foreground:var(--color-neutral-800);--destructive:var(--color-red-500);--destructive-foreground:var(--color-red-700);--info:var(--color-blue-500);--info-foreground:var(--color-blue-700);--success:var(--color-emerald-500);--success-foreground:var(--color-emerald-700);--warning:var(--color-amber-500);--warning-foreground:var(--color-amber-700);--border:#00000014}
@supports (color:color-mix(in lab, red, red)){:root{--border:color-mix(in oklab,var(--color-black)8%,transparent)}}
:root{--input:#0000001a}
@supports (color:color-mix(in lab, red, red)){:root{--input:color-mix(in oklab,var(--color-black)10%,transparent)}}
:root{--ring:var(--color-neutral-400);--chart-1:var(--color-orange-600);--chart-2:var(--color-teal-600);--chart-3:var(--color-cyan-900);--chart-4:var(--color-amber-400);--chart-5:var(--color-amber-500);--sidebar:var(--color-neutral-50);--sidebar-foreground:#262626}
@supports (color:lab(0% 0 0)){:root{--sidebar-foreground:lab(15.204% 0 -.00000596046)}}
@supports (color:color-mix(in lab, red, red)){:root{--sidebar-foreground:color-mix(in srgb,var(--color-neutral-800)64%,var(--sidebar))}}
:root{--sidebar-primary:var(--color-neutral-800);--sidebar-primary-foreground:var(--color-neutral-50);--sidebar-accent:#0000000a}
@supports (color:color-mix(in lab, red, red)){:root{--sidebar-accent:color-mix(in oklab,var(--color-black)4%,transparent)}}
:root{--sidebar-accent-foreground:var(--color-neutral-800);--sidebar-border:#0000000f}
@supports (color:color-mix(in lab, red, red)){:root{--sidebar-border:color-mix(in oklab,var(--color-black)6%,transparent)}}
:root{--sidebar-ring:var(--color-neutral-400);--code:var(--color-white);--code-foreground:var(--foreground);--code-highlight:#0000000a}
@supports (color:color-mix(in lab, red, red)){:root{--code-highlight:color-mix(in oklab,var(--color-black)4%,transparent)}}
.dark{--background:#141414}
@supports (color:color-mix(in lab, red, red)){.dark{--background:color-mix(in srgb,var(--color-neutral-950)96%,var(--color-white))}}
.dark{--foreground:var(--color-neutral-100);--card:var(--background)}
@supports (color:color-mix(in lab, red, red)){.dark{--card:color-mix(in srgb,var(--background)98%,var(--color-white))}}
.dark{--card-foreground:var(--color-neutral-100);--popover:var(--background)}
@supports (color:color-mix(in lab, red, red)){.dark{--popover:color-mix(in srgb,var(--background)96%,var(--color-white))}}
.dark{--popover-foreground:var(--color-neutral-100);--primary:var(--color-neutral-100);--primary-foreground:var(--color-neutral-800);--secondary:#ffffff0a}
@supports (color:color-mix(in lab, red, red)){.dark{--secondary:color-mix(in oklab,var(--color-white)4%,transparent)}}
.dark{--secondary-foreground:var(--color-neutral-100);--muted:#ffffff0a}
@supports (color:color-mix(in lab, red, red)){.dark{--muted:color-mix(in oklab,var(--color-white)4%,transparent)}}
.dark{--muted-foreground:#818181}
@supports (color:color-mix(in lab, red, red)){.dark{--muted-foreground:color-mix(in srgb,var(--color-neutral-500)90%,var(--color-white))}}
.dark{--accent:#ffffff0a}
@supports (color:color-mix(in lab, red, red)){.dark{--accent:color-mix(in oklab,var(--color-white)4%,transparent)}}
.dark{--accent-foreground:var(--color-neutral-100);--destructive:#fb414a}
@supports (color:color-mix(in lab, red, red)){.dark{--destructive:color-mix(in srgb,var(--color-red-500)90%,var(--color-white))}}
.dark{--destructive-foreground:var(--color-red-400);--info:var(--color-blue-500);--info-foreground:var(--color-blue-400);--success:var(--color-emerald-500);--success-foreground:var(--color-emerald-400);--warning:var(--color-amber-500);--warning-foreground:var(--color-amber-400);--border:#ffffff0f}
@supports (color:color-mix(in lab, red, red)){.dark{--border:color-mix(in oklab,var(--color-white)6%,transparent)}}
.dark{--input:#ffffff14}
@supports (color:color-mix(in lab, red, red)){.dark{--input:color-mix(in oklab,var(--color-white)8%,transparent)}}
.dark{--ring:var(--color-neutral-500);--chart-1:var(--color-blue-700);--chart-2:var(--color-emerald-500);--chart-3:var(--color-amber-500);--chart-4:var(--color-purple-500);--chart-5:var(--color-rose-500);--sidebar:#111}
@supports (color:color-mix(in lab, red, red)){.dark{--sidebar:color-mix(in srgb,var(--color-neutral-950)97%,var(--color-white))}}
.dark{--sidebar-foreground:#f5f5f5}
@supports (color:lab(0% 0 0)){.dark{--sidebar-foreground:lab(96.52% -.0000298023 .0000119209)}}
@supports (color:color-mix(in lab, red, red)){.dark{--sidebar-foreground:color-mix(in srgb,var(--color-neutral-100)64%,var(--sidebar))}}
.dark{--sidebar-primary:var(--color-neutral-100);--sidebar-primary-foreground:var(--color-neutral-800);--sidebar-accent:#ffffff0a}
@supports (color:color-mix(in lab, red, red)){.dark{--sidebar-accent:color-mix(in oklab,var(--color-white)4%,transparent)}}
.dark{--sidebar-accent-foreground:var(--color-neutral-100);--sidebar-border:#ffffff0d}
@supports (color:color-mix(in lab, red, red)){.dark{--sidebar-border:color-mix(in oklab,var(--color-white)5%,transparent)}}
.dark{--sidebar-ring:var(--color-neutral-400);--code:var(--background)}
@supports (color:color-mix(in lab, red, red)){.dark{--code:color-mix(in srgb,var(--background)98%,var(--color-white))}}
.dark{--code-foreground:var(--foreground);--code-highlight:#ffffff0a}
@supports (color:color-mix(in lab, red, red)){.dark{--code-highlight:color-mix(in oklab,var(--color-white)4%,transparent)}}
:where([class*="c-"], [class*="c-"] *, [class*="c-"]::before, [class*="c-"]::after, [class*="c-"] *::before, [class*="c-"] *::after){box-sizing:border-box;border:0 solid;margin:0;padding:0}
:where([class*="c-"]) :where(button,input,select,textarea,optgroup){font:inherit;font-feature-settings:inherit;letter-spacing:inherit;color:inherit;background-color:transparent;border-radius:0}
:where([class*="c-"]) :where(button,[type=button],[type=reset],[type=submit]){appearance:button}
:where([class*="c-"]) :where(img,svg,video,canvas){display:block;vertical-align:middle}
:where([class*="c-"]) :where(a){color:inherit;text-decoration:inherit}
:where([class*="c-"]) :where(ol,ul,menu){list-style:none}
:where([class*="c-"]) :where(table){text-indent:0;border-color:inherit;border-collapse:collapse}
:where([class*="c-"]) :where([hidden]:not([hidden=until-found])){display:none!important}
:where([class*="c-"]){border-color:var(--border);outline-color:var(--ring)}
:where([class*="c-"], [class*="c-"] *, [class*="c-"]::before, [class*="c-"]::after, [class*="c-"] *::before, [class*="c-"] *::after){--tw-translate-x:0;--tw-translate-y:0;--tw-translate-z:0;--tw-scale-x:1;--tw-scale-y:1;--tw-scale-z:1;--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-space-y-reverse:0;--tw-space-x-reverse:0;--tw-divide-x-reverse:0;--tw-border-style:solid;--tw-divide-y-reverse:0;--tw-gradient-position:initial;--tw-gradient-from:#0000;--tw-gradient-via:#0000;--tw-gradient-to:#0000;--tw-gradient-stops:initial;--tw-gradient-via-stops:initial;--tw-gradient-from-position:0%;--tw-gradient-via-position:50%;--tw-gradient-to-position:100%;--tw-mask-linear:linear-gradient(#fff,#fff);--tw-mask-radial:linear-gradient(#fff,#fff);--tw-mask-conic:linear-gradient(#fff,#fff);--tw-mask-left:linear-gradient(#fff,#fff);--tw-mask-right:linear-gradient(#fff,#fff);--tw-mask-bottom:linear-gradient(#fff,#fff);--tw-mask-top:linear-gradient(#fff,#fff);--tw-mask-top-from-position:0%;--tw-mask-top-to-position:100%;--tw-mask-top-from-color:black;--tw-mask-top-to-color:transparent;--tw-mask-right-from-position:0%;--tw-mask-right-to-position:100%;--tw-mask-right-from-color:black;--tw-mask-right-to-color:transparent;--tw-mask-bottom-from-position:0%;--tw-mask-bottom-to-position:100%;--tw-mask-bottom-from-color:black;--tw-mask-bottom-to-color:transparent;--tw-mask-left-from-position:0%;--tw-mask-left-to-position:100%;--tw-mask-left-from-color:black;--tw-mask-left-to-color:transparent;--tw-leading:initial;--tw-font-weight:initial;--tw-tracking:initial;--tw-ordinal:initial;--tw-slashed-zero:initial;--tw-numeric-figure:initial;--tw-numeric-spacing:initial;--tw-numeric-fraction:initial;--tw-shadow:0 0 #0000;--tw-shadow-color:initial;--tw-shadow-alpha:100%;--tw-inset-shadow:0 0 #0000;--tw-inset-shadow-color:initial;--tw-inset-shadow-alpha:100%;--tw-ring-color:initial;--tw-ring-shadow:0 0 #0000;--tw-inset-ring-color:initial;--tw-inset-ring-shadow:0 0 #0000;--tw-ring-inset:initial;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000;--tw-outline-style:solid;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial;--tw-backdrop-blur:initial;--tw-backdrop-brightness:initial;--tw-backdrop-contrast:initial;--tw-backdrop-grayscale:initial;--tw-backdrop-hue-rotate:initial;--tw-backdrop-invert:initial;--tw-backdrop-opacity:initial;--tw-backdrop-saturate:initial;--tw-backdrop-sepia:initial;--tw-duration:initial;--tw-ease:initial;--tw-content:"";--tw-border-spacing-x:0;--tw-border-spacing-y:0}
@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}
@property --tw-content{syntax:"*";inherits:false;initial-value:""}
@property --tw-duration{syntax:"*";inherits:false}
@property --tw-ease{syntax:"*";inherits:false}
@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}
@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}
@property --tw-inset-shadow-color{syntax:"*";inherits:false}
@property --tw-leading{syntax:"*";inherits:false}
@property --tw-ring-color{syntax:"*";inherits:false}
@property --tw-ring-inset{syntax:"*";inherits:false}
@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}
@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}
@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}
@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}
@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}
@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}
@property --tw-shadow-color{syntax:"*";inherits:false}
@property --tw-space-y-reverse{syntax:"*";inherits:false;initial-value:0}
@property --tw-translate-x{syntax:"*";inherits:false;initial-value:0}
@property --tw-translate-y{syntax:"*";inherits:false;initial-value:0}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion: reduce){:where([class*="c-"], [class*="c-"] *){animation-duration:1ms!important;animation-iteration-count:1!important;transition-duration:1ms!important}}

/* select · Componentes (MIRÓ Labs). Diseño de coss ui (MIT, © coss.com, antes Origin UI).
   Generado por tools/build_css.py desde select.tw.json. No editar a mano. Necesita tokens.css. */
.c-select__icon{pointer-events:none;position:absolute}
.c-select{position:relative}
.c-select-field{display:flex}
.c-select{display:inline-flex}
.c-select-label{display:inline-flex}
.c-select__icon{width:calc(var(--spacing)*4.5);height:calc(var(--spacing)*4.5)}
.c-select__field option{min-height:calc(var(--spacing)*8)}
.c-select{min-height:calc(var(--spacing)*9);width:100%}
.c-select-field{width:100%;max-width:calc(var(--spacing)*72)}
.c-select{min-width:calc(var(--spacing)*36)}
.c-select__field option{cursor:default}
.c-select-field{flex-direction:column}
.c-select{align-items:center}
.c-select-label{align-items:center}
.c-select-field{align-items:flex-start}
.c-select{justify-content:space-between;gap:calc(var(--spacing)*2)}
.c-select-field{gap:calc(var(--spacing)*2)}
.c-select-label{gap:calc(var(--spacing)*2)}
.c-select__field option{gap:calc(var(--spacing)*2)}
.c-select{border-radius:var(--radius)}
.c-select__field option{border-radius:calc(var(--radius) - 4px)}
.c-select{border-style:var(--tw-border-style);border-width:1px;border-color:var(--input);background-color:var(--background)}
.c-select__field option{padding-block:calc(var(--spacing)*1);padding-inline-start:calc(var(--spacing)*2);padding-inline-end:calc(var(--spacing)*4)}
.c-select{text-align:left;font-size:var(--text-base);line-height:var(--tw-leading,var(--text-base--line-height))}
.c-select__field option{font-size:var(--text-base);line-height:var(--tw-leading,var(--text-base--line-height))}
.c-select-label{font-size:var(--text-base);line-height:calc(var(--spacing)*4.5);--tw-font-weight:var(--font-weight-medium);font-weight:var(--font-weight-medium)}
.c-select{color:var(--foreground)}
.c-select-label{color:var(--foreground)}
.c-select__icon{opacity:.8}
.c-select{--tw-shadow-alpha:5%;--tw-shadow:0 1px 2px 0 var(--tw-shadow-color,#0000000d);box-shadow:var(--tw-inset-shadow),var(--tw-inset-ring-shadow),var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow)}
@supports (color:lab(0% 0 0)){
.c-select{--tw-shadow:0 1px 2px 0 var(--tw-shadow-color,lab(0% 0 0/.05))}
}
.c-select{--tw-ring-color:var(--ring)}
@supports (color:color-mix(in lab, red, red)){
.c-select{--tw-ring-color:color-mix(in oklab,var(--ring)24%,transparent)}
}
.c-select{transition-property:box-shadow;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration));--tw-outline-style:none;outline-style:none}
.c-select__field option{--tw-outline-style:none;outline-style:none}
.c-select{-webkit-user-select:none;user-select:none}
.c-select:not(:is(.dark *)){background-clip:padding-box}
.c-select:before{content:var(--tw-content);pointer-events:none;content:var(--tw-content);position:absolute;content:var(--tw-content);inset:calc(var(--spacing)*0);content:var(--tw-content);border-radius:calc(var(--radius-lg) - 1px)}
.c-select:not(:has(>.c-select__field:disabled)):not(:has(>.c-select__field:focus-visible)):not([aria-invalid=true]):not([data-pressed]):before{content:var(--tw-content);--tw-shadow:0 1px var(--tw-shadow-color,#0000000a)}
@supports (color:color-mix(in lab, red, red)){
.c-select:not(:has(>.c-select__field:disabled)):not(:has(>.c-select__field:focus-visible)):not([aria-invalid=true]):not([data-pressed]):before{--tw-shadow:0 1px var(--tw-shadow-color,color-mix(in oklab,var(--color-black)4%,transparent))}
}
.c-select:not(:has(>.c-select__field:disabled)):not(:has(>.c-select__field:focus-visible)):not([aria-invalid=true]):not([data-pressed]):before{box-shadow:var(--tw-inset-shadow),var(--tw-inset-ring-shadow),var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow)}
.c-select:has(>.c-select__field:focus-visible){border-color:var(--ring);--tw-ring-shadow:var(--tw-ring-inset,)0 0 0 calc(3px + var(--tw-ring-offset-width))var(--tw-ring-color,currentcolor);box-shadow:var(--tw-inset-shadow),var(--tw-inset-ring-shadow),var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow)}
.c-select[aria-invalid=true]{border-color:var(--destructive)}
@supports (color:color-mix(in lab, red, red)){
.c-select[aria-invalid=true]{border-color:color-mix(in oklab,var(--destructive)36%,transparent)}
}
.c-select:has(>.c-select__field:focus-visible)[aria-invalid=true]{border-color:var(--destructive)}
@supports (color:color-mix(in lab, red, red)){
.c-select:has(>.c-select__field:focus-visible)[aria-invalid=true]{border-color:color-mix(in oklab,var(--destructive)64%,transparent)}
}
.c-select:has(>.c-select__field:focus-visible)[aria-invalid=true]{--tw-ring-color:var(--destructive)}
@supports (color:color-mix(in lab, red, red)){
.c-select:has(>.c-select__field:focus-visible)[aria-invalid=true]{--tw-ring-color:color-mix(in oklab,var(--destructive)16%,transparent)}
}
.c-select:has(>.c-select__field:disabled){opacity:.64}
.c-select__field option:disabled{opacity:.64}
.c-select__field option:is(:hover,:focus-visible){background-color:var(--accent);color:var(--accent-foreground)}
@media (min-width:40rem){
.c-select__icon{width:calc(var(--spacing)*4);height:calc(var(--spacing)*4)}
.c-select__field option{min-height:calc(var(--spacing)*7)}
.c-select{min-height:calc(var(--spacing)*8);font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}
.c-select__field option{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}
.c-select-label{font-size:var(--text-sm);line-height:calc(var(--spacing)*4)}
}
.c-select:is(.dark *){background-color:var(--input)}
@supports (color:color-mix(in lab, red, red)){
.c-select:is(.dark *){background-color:color-mix(in oklab,var(--input)32%,transparent)}
}
.c-select:is(.dark *):not(:has(>.c-select__field:disabled)):not(:has(>.c-select__field:focus-visible)):not([aria-invalid=true]):not([data-pressed]):before{content:var(--tw-content);--tw-shadow:0 -1px var(--tw-shadow-color,#ffffff0f)}
@supports (color:color-mix(in lab, red, red)){
.c-select:is(.dark *):not(:has(>.c-select__field:disabled)):not(:has(>.c-select__field:focus-visible)):not([aria-invalid=true]):not([data-pressed]):before{--tw-shadow:0 -1px var(--tw-shadow-color,color-mix(in oklab,var(--color-white)6%,transparent))}
}
.c-select:is(.dark *):not(:has(>.c-select__field:disabled)):not(:has(>.c-select__field:focus-visible)):not([aria-invalid=true]):not([data-pressed]):before{box-shadow:var(--tw-inset-shadow),var(--tw-inset-ring-shadow),var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow)}
.c-select:is(.dark *)[aria-invalid=true]{--tw-ring-color:var(--destructive)}
@supports (color:color-mix(in lab, red, red)){
.c-select:is(.dark *)[aria-invalid=true]{--tw-ring-color:color-mix(in oklab,var(--destructive)24%,transparent)}
}
.c-select:is(:has(>.c-select__field:disabled),:has(>.c-select__field:focus-visible),:has(>.c-select__field[aria-invalid=true]),[data-pressed]){--tw-shadow:0 0 #0000;box-shadow:var(--tw-inset-shadow),var(--tw-inset-ring-shadow),var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow)}
/* propio */
.c-select__field{appearance:none;-webkit-appearance:none;width:100%;min-height:inherit;padding-inline:calc(var(--spacing)*3 - 1px) calc(var(--spacing)*9);background:transparent;border:0;border-radius:inherit;color:inherit;font:inherit;outline:none;cursor:pointer}
.c-select__field:disabled{cursor:not-allowed}
.c-select__field:invalid{color:color-mix(in oklab,var(--muted-foreground)72%,transparent)}
.c-select__field option{color:var(--foreground);background:var(--popover)}
@supports (appearance: base-select){
 .c-select__field,.c-select__field::picker(select){appearance:base-select}
 .c-select__field{display:flex;align-items:center}
 .c-select__field::picker-icon{display:none}
 .c-select__field::picker(select){margin-block:4px;padding:.25rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--popover);color:var(--popover-foreground);box-shadow:0 10px 15px -3px #0000000d,0 4px 6px -4px #0000000d;opacity:0;scale:.98;transition:opacity .15s,scale .15s,display .15s allow-discrete,overlay .15s allow-discrete}
 .c-select__field:open::picker(select){opacity:1;scale:1}
 @starting-style{.c-select__field:open::picker(select){opacity:0;scale:.98}}
 .c-select__field option{display:grid;grid-template-columns:1rem minmax(0,1fr);align-items:center}
 .c-select__field option::checkmark{content:"✓" / "";grid-column:1;font-size:.75rem}
 .c-select__field optgroup{padding:.375rem .5rem;font-size:var(--text-xs);font-weight:500;color:var(--muted-foreground)}
}
.c-select__icon{inset-inline-end:calc(var(--spacing)*3 - 1px)}

/* página de prueba */
body{margin:0;min-height:100vh;display:grid;place-items:center;padding:40px 24px;background:var(--background);color:var(--foreground);font-family:var(--font-sans);font-size:14px;line-height:1.5}
.c-demo{display:grid;gap:1rem;justify-items:center;width:auto;max-width:100%;min-width:0;justify-self:center;grid-template-columns:minmax(0,auto)}
body{grid-template-columns:minmax(0,1fr)}
.embed body{background:transparent}
</style>
</head>
<body>
<div class="c-demo">
<div class="c-select-field">
  <label class="c-select-label" for="sel-framework">Formato</label>
  <span class="c-select">
    <select class="c-select__field" id="sel-framework" name="format">
      <option value="1:1">Cuadrado · 1:1</option>
      <option value="4:5" selected>Póster · 4:5</option>
      <option value="9:16">Historia · 9:16</option>
      <option value="16:9">Pantalla · 16:9</option>
    </select>
    <svg class="c-select__icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="m7 15 5 5 5-5"/><path d="m7 9 5-5 5 5"/></svg>
  </span>
</div>
<div class="c-select-field">
  <label class="c-select-label" for="sel-country">País</label>
  <span class="c-select">
    <select class="c-select__field" id="sel-country" name="country" required>
      <option value="" disabled selected>Elige un país</option>
      <optgroup label="Sudamérica"><option>Argentina</option><option>Chile</option><option>Colombia</option><option>Perú</option></optgroup>
      <optgroup label="Centro y Norteamérica"><option>Guatemala</option><option>México</option></optgroup>
    </select>
    <svg class="c-select__icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="m7 15 5 5 5-5"/><path d="m7 9 5-5 5 5"/></svg>
  </span>
</div>
</div>

</body>
</html>

«Todo» trae tokens, dependencias y componente en un solo archivo, listo para abrir o dárselo a un agente.“All” bundles tokens, dependencies and the component in one file, ready to open or hand to an agent.

InstalaciónInstallation

Agrega una vezAdd once tokens.css (colores, radios, tema oscuro).(colors, radii, dark theme).
Copia los archivos:Copy the files: select.html, select.css.
Para el tema oscuro, pon la claseFor the dark theme, add the class dark ento <html>.

Cuándo usarloWhen to use it

ÚsaloUse it

Para elegir una opción entre 5 y 30.

To pick one of 5 to 30 options.

Mejor noAvoid

Con 2 a 4 opciones: usa radios.
Para acciones: usa un menú.

With 2 to 4 options: use radios.
For actions: use a menu.

comboboxlistboxoption

`Espacio` `Enter`	Abre la listaOpens the list
`↑` `↓`	Cambia de opciónChanges option
`Letra` `Letter`	Salta a la opciónJumps to the option

Es el <select> nativo: teclado, lector y la rueda del móvil vienen del navegador.
En Chrome 135+ la lista abierta también toma el estilo (appearance: base-select).

It is the native <select>: keyboard, screen reader and mobile picker come from the browser.
In Chrome 135+ the open list is styled too (appearance: base-select).

Cómo probarloHow to test it

Enfoca «País» y escribe «p»: salta a Perú.

Focus “Country” and type “p”: it jumps to Perú.

Límites conocidosKnown issues

En Safari y Firefox la lista abierta es la del sistema.

Safari and Firefox show the system list when open.