jsfiddle/modules/wasm-fiddle/wasm-fiddle.scss

@import '~elements-sk/themes/themes';
@import '~codemirror/lib/codemirror.css';
@import '~codemirror/theme/ambiance.css';
@import '~codemirror/theme/base16-light.css';

@import url('https://fonts.googleapis.com/css?family=Roboto:300,400,500,700,400italic|Roboto+Mono:400,500');

/*
  Only define deltas from the original theme and global changes from elemets-sk
  elements.
*/

body {
  margin: 0;
  padding: 0;
  font-family: Roboto, sans-serif;
}

.body-sk.darkmode {
  --primary: var(--light-blue-500);
  --primary-variant: var(--light-blue-200);
  --on-primary-variant: var(--black);
}

.body-sk {
  --secondary: var(--green-500);
  --primary-variant: var(--light-blue-600);

  input {
    border: solid 1px var(--on-surface);
    color: solid 1px var(--on-surface);
    background: solid 1px var(--surface);
    display: inline-block;
  }

  button {
    min-width: auto;
    text-align: center;
    text-transform: none;
    padding: 4px;
    height: fit-content;
    margin: 0 8px 8px 0;
    box-shadow: inset 0 0 2.3px 0px var(--on-surface);
    outline: none;
  }

  error-toast-sk {
    padding: 8px;
  }

  error-toast-sk button {
    margin: 0 0 0 8px;
    padding: 4px;
  }

  main > * {
    margin: 0 8px 8px 0;
  }

  main {
    padding: 8px;

    .output > * {
      margin: 0 8px 8px 0;
    }

    .output {
      display: inline-block;
      vertical-align: top;
      max-width: 500px;

      .widget {
        display: block;
        border: none;
      }

      .buttons,
      canvas {
        display: block;
      }

      canvas {
        border: 1px dashed var(--on-surface);
        vertical-align: top;
      }
    }

    input[type='range'] {
      margin: 0;
      padding: 0;
      border: none;
    }
  }

  header {
    margin: 0;
    padding: 1em 0.5em;
    color: var(--primary);
    background: var(--surface-1dp);
    display: flex;
    flex-direction: row;
    justify-content: space-between;

    a {
      color: var(--primary);
    }

    .title {
      font-size: 1.5em;
      font-weight: bold;
    }

    .npm {
      margin: auto 8px;
      font-size: 1em;
    }

    .version {
      margin: auto;
      font-size: 1.1em;
    }

    .flex {
      flex: 1;
      flex-basis: 0.000000001px;
    }
  }

  #editor {
    display: inline-block;
    position: relative;
    overflow: hidden;
    color: var(--on-surface);
    background: var(--surface);
    font-family: Roboto Mono, monospace;
    font-size: 13px;
    width: 57em;

    .CodeMirror {
      height: 80vh;
    }
  }
}

button.action {
  cursor: pointer;

  &.prompt {
    animation: pulse 0.5s 1 linear;
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0px 0px 2px 2px var(--primary);
  }

  50% {
    box-shadow: 0px 0px 2px 2px var(--primary);
  }

  100% {
    box-shadow: 0px 0px 2px 2px var(--primary);
  }
}

#logsContainer {
  color: var(--on-surface);
  background: var(--surface);
  margin: 0 8px 8px 0;
  width: 100%;
  min-height: 200px;
}

/*
   The following styles are for scrollbars. There are some non-standard looking
   styles because it is 2020 and there's still no standard way to style
   scrollbars on a web page.

   https://caniuse.com/#feat=css-scrollbar

   There is currently an editor's draft for styling scrollbars:
   https://drafts.csswg.org/css-scrollbars-1/, but it is only supported by
   FireFox. So set that first.
*/

* {
  scrollbar-color: var(--surface-1dp) var(--background);
}

/* Now set the non-standard styles. Unfortunately the way webpack/cssmin is
   configured currently it will strip the following rules from the output so we
   turn the autoprefixer off.
*/

/* autoprefixer: off */

/* Turn on a 13x13 scrollbar */
::-webkit-scrollbar {
  width: 13px;
  height: 13px;
}

/* Turn off single button up on top and down on bottom */
::-webkit-scrollbar-button:start:decrement,
::-webkit-scrollbar-button:end:increment,
::-webkit-scrollbar-button:vertical:start:increment,
::-webkit-scrollbar-button:vertical:end:decrement {
  display: none;
}

/* Track below and above */
::-webkit-scrollbar-track-piece {
  background-color: var(--background);
  border: solid 1px var(--surface-2dp);
}

/* The thumb itself */
::-webkit-scrollbar-thumb {
  border: solid 1px var(--on-surface);
  background: var(--surface-1dp);
}

/* Handle on hover */
::-webkit-scrollbar-thumb:hover {
  background: var(--surface);
}