Code Playground

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <main>
      <p
        class="fluid"
        data-enable-grammarly="false"
        spellcheck="false"
        contenteditable="true"
      >
        CSS is awesome, right?
      </p>
      <p
        class="fluid"
        data-enable-grammarly="false"
        spellcheck="false"
        contenteditable="true"
      >
        CSS is awesome
      </p>
      <p
        class="fluid"
        data-enable-grammarly="false"
        spellcheck="false"
        contenteditable="true"
      >
        Right?!
      </p>
      <p
        class="fluid"
        data-enable-grammarly="false"
        spellcheck="false"
        contenteditable="true"
      >
        CSS
      </p>
    </main>
    <style id="frames" type="text/css"></style>
    <a
      class="bear-link"
      href="https://twitter.com/intent/follow?screen_name=jh3yy"
      target="_blank"
      rel="noreferrer noopener"
    >
      <svg
        class="w-9"
        viewBox="0 0 969 955"
        fill="none"
        xmlns="http://www.w3.org/2000/svg"
      >
        <circle
          cx="161.191"
          cy="320.191"
          r="133.191"
          stroke="currentColor"
          stroke-width="20"
        ></circle>
        <circle
          cx="806.809"
          cy="320.191"
          r="133.191"
          stroke="currentColor"
          stroke-width="20"
        ></circle>
        <circle
          cx="695.019"
          cy="587.733"
          r="31.4016"
          fill="currentColor"
        ></circle>
        <circle
          cx="272.981"
          cy="587.733"
          r="31.4016"
          fill="currentColor"
        ></circle>
        <path
          d="M564.388 712.083C564.388 743.994 526.035 779.911 483.372 779.911C440.709 779.911 402.356 743.994 402.356 712.083C402.356 680.173 440.709 664.353 483.372 664.353C526.035 664.353 564.388 680.173 564.388 712.083Z"
          fill="currentColor"
        ></path>
        <rect
          x="310.42"
          y="448.31"
          width="343.468"
          height="51.4986"
          fill="#FF1E1E"
        ></rect>
        <path
          fill-rule="evenodd"
          clip-rule="evenodd"
          d="M745.643 288.24C815.368 344.185 854.539 432.623 854.539 511.741H614.938V454.652C614.938 433.113 597.477 415.652 575.938 415.652H388.37C366.831 415.652 349.37 433.113 349.37 454.652V511.741L110.949 511.741C110.949 432.623 150.12 344.185 219.845 288.24C289.57 232.295 384.138 200.865 482.744 200.865C581.35 200.865 675.918 232.295 745.643 288.24Z"
          fill="currentColor"
        ></path>
      </svg>
    </a>
</body>
</html>

@charset "UTF-8";
@import url(https://fonts.googleapis.com/css?family=Nunito+Sans:300,400,600,700,800);
*,
:after,
:before {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}
@import url('https://fonts.googleapis.com/css2?family=Ubuntu:ital,wght@0,300;0,400;0,500;0,700;1,300;1,400;1,500;1,700&display=swap');
@import url('https://unpkg.com/normalize.css') layer(normalize);

@layer normalize, base, demo;

@layer demo {
  [data-style='classic'] {
    --chosen: var(--classic);
  }
  [data-style='flame'] {
    --chosen: var(--flame);
  }
  [data-style='aurora'] {
    --chosen: var(--aurora);
  }

:root {
    --duration: calc(var(--placeholder-length, 10) * 0.2s);
    --place-color: light-dark(
      color-mix(in hsl, canvas, canvasText 20%),
      color-mix(in hsl, canvas, canvasText 20%)
    );
    --offset: calc(var(--bg-spread, 6) * 0.5ch);
    --angle: calc(var(--bg-angle) * 1deg);
    --flame: linear-gradient(
      var(--angle),
      #0000 calc(50% - var(--offset)),
      hsl(45 100% 60%) calc(50% - (var(--offset) - 0.5ch)),
      hsl(0 100% 50%),
      #0000 calc(50% + var(--offset))
    );
    --aurora: linear-gradient(
      var(--angle),
      #0000 calc(50% - var(--offset)),
      #a960ee,
      #ff333d,
      #ffcb57,
      #90e0ff,
      #0000 calc(50% + var(--offset))
    );
    --classic: linear-gradient(
      var(--angle),
      #0000 calc(50% - var(--offset)),
      canvasText,
      #0000 calc(50% + var(--offset))
    );
    --bg: var(--chosen) 0 0 / 300% 100% no-repeat border-box,
      linear-gradient(var(--place-color), var(--place-color)) padding-box;
  }

main {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

main p {
    --font-level: 2;
    --duration: calc((var(--placeholder-length, 10) * var(--multiplier)) * 1s);
    margin: 0;
    border: 2px solid #0000;
    white-space: nowrap;
    line-height: 1.2;
    outline-offset: 0.1em;
    background: var(--bg);
    outline-color: hsl(280 90% 60% / 0.5);
    font-weight: 400;
    animation: shimmer var(--duration) infinite both ease-in-out;
    background-clip: text;
    color: transparent;
    display: inline-block;
    align-self: start;
  }

@keyframes shimmer {
    0% {
      background-position: 100% 0;
    }
    50%,
    100% {
      background-position: 0% 0;
    }
  }

[data-debug='true'] main p {
    animation: none;
    background-position: calc(var(--bg-position) * 1%);
  }
}

@layer base {
  :root {
    --font-size-min: 16;
    --font-size-max: 20;
    --font-ratio-min: 1.2;
    --font-ratio-max: 1.33;
    --font-width-min: 375;
    --font-width-max: 1500;
  }

html {
    color-scheme: light dark;
  }

[data-theme='light'] {
    color-scheme: light only;
  }

[data-theme='dark'] {
    color-scheme: dark only;
  }

:where(.fluid) {
    --fluid-min: calc(
      var(--font-size-min) * pow(var(--font-ratio-min), var(--font-level, 0))
    );
    --fluid-max: calc(
      var(--font-size-max) * pow(var(--font-ratio-max), var(--font-level, 0))
    );
    --fluid-preferred: calc(
      (var(--fluid-max) - var(--fluid-min)) /
        (var(--font-width-max) - var(--font-width-min))
    );
    --fluid-type: clamp(
      (var(--fluid-min) / 16) * 1rem,
      ((var(--fluid-min) / 16) * 1rem) -
        (((var(--fluid-preferred) * var(--font-width-min)) / 16) * 1rem) +
        (var(--fluid-preferred) * var(--variable-unit, 100vi)),
      (var(--fluid-max) / 16) * 1rem
    );
    font-size: var(--fluid-type);
  }

*,
  *:after,
  *:before {
    box-sizing: border-box;
  }

body {
    display: grid;
    place-items: center;
    background: light-dark(canvas, black);
    min-height: 100vh;
    font-family: 'SF Pro Text', 'SF Pro Icons', 'AOS Icons', 'Helvetica Neue',
      Helvetica, Arial, sans-serif, system-ui;
  }

body::before {
    --size: 45px;
    --line: color-mix(in lch, canvasText, transparent 70%);
    content: '';
    height: 100vh;
    width: 100vw;
    position: fixed;
    background: linear-gradient(
          90deg,
          var(--line) 1px,
          transparent 1px var(--size)
        )
        50% 50% / var(--size) var(--size),
      linear-gradient(var(--line) 1px, transparent 1px var(--size)) 50% 50% /
        var(--size) var(--size);
    mask: linear-gradient(-20deg, transparent 50%, white);
    top: 0;
    transform-style: flat;
    pointer-events: none;
    z-index: -1;
  }

.bear-link {
    color: canvasText;
    position: fixed;
    top: 1rem;
    left: 1rem;
    width: 48px;
    aspect-ratio: 1;
    display: grid;
    place-items: center;
    opacity: 0.8;
  }

:where(.x-link, .bear-link):is(:hover, :focus-visible) {
    opacity: 1;
  }

.bear-link svg {
    width: 75%;
  }

/* Utilities */
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
  }
}

div.tp-dfwv {
  width: 270px;
}

console.log("Event Fired")
import { Pane } from 'https://cdn.skypack.dev/tweakpane'

let pos
let angle
let spread

const config = {
  theme: 'dark',
  placeholder: "What we cookin'?",
  position: 50,
  debug: false,
  multiplier: 0.12,
  bordered: true,
  spread: 3,
  angle: 295,
  style: 'classic',
}

const ctrl = new Pane({
  title: 'Config',
  expanded: true,
})

const main = document.querySelector('main')

const update = () => {
  document.documentElement.dataset.theme = config.theme
  document.documentElement.dataset.debug = config.debug
  document.documentElement.dataset.style = config.style
  pos.disabled = spread.disabled = angle.disabled = !config.debug
  document.documentElement.style.setProperty('--bg-position', config.position)
  document.documentElement.style.setProperty('--bg-spread', config.spread)
  document.documentElement.style.setProperty('--bg-angle', config.angle)
  document.documentElement.style.setProperty('--multiplier', config.multiplier)
}

const sync = (event) => {
  if (
    !document.startViewTransition ||
    event.target.controller.view.labelElement.innerText !== 'Theme'
  )
    return update()
  document.startViewTransition(() => update())
}

ctrl.addBinding(config, 'multiplier', {
  min: 0.05,
  max: 0.2,
  step: 0.01,
  label: 'Speed X',
})

ctrl.addBinding(config, 'style', {
  label: 'Style',
  options: {
    Classic: 'classic',
    Aurora: 'aurora',
    Flame: 'flame',
  },
})
ctrl.addBinding(config, 'debug', {
  label: 'Configure',
})
pos = ctrl.addBinding(config, 'position', {
  min: 0,
  max: 100,
  step: 1,
  label: 'Position',
  disabled: !config.debug,
})

spread = ctrl.addBinding(config, 'spread', {
  min: 2,
  max: 10,
  step: 1,
  label: 'Spread (ch)',
  disabled: !config.debug,
})

angle = ctrl.addBinding(config, 'angle', {
  min: 0,
  max: 360,
  step: 1,
  label: 'Angle (deg)',
  disabled: !config.debug,
})

ctrl.addBinding(config, 'theme', {
  label: 'Theme',
  options: {
    System: 'system',
    Light: 'light',
    Dark: 'dark',
  },
})

ctrl.on('change', sync)
update()

const syncLines = () => {
  ;[...main.children].forEach((child) => {
    child.style.setProperty('--placeholder-length', child.textContent.length)
  })
}

main.addEventListener('input', syncLines)
syncLines()

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