p5.js-web-editor/client/styles/components/_asset-size.scss

.asset-size {
  position: relative;
  flex: 1;
  margin-bottom: #{18 / $base-font-size}rem;
  font-size: #{14 / $base-font-size}rem;
}

.asset-size-bar {
  position: relative;
  content: ' ';
  display: block;
  width: 200px;
  height: 20px;

  border-radius: #{3 / $base-font-size}rem;
  border: 1px solid transparent;
  overflow: hidden;

  @include themify() {
    background-color: getThemifyVariable('progress-bar-background-color');
  }
}

.asset-size-bar::before {
  content: ' ';
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: calc(var(--percent) * 100%);

  @include themify() {
    background-color: getThemifyVariable('progress-bar-active-color');
  }
}

.asset-current {
  position: absolute;
  top: 28px;
  left: calc(200px * var(--percent));
  margin-left: -8px;
}

.asset-max {
  position: absolute;
  top: 0;
  left: 0;
  transform: translate(210%); // align max label to right of asset-size-bar
  padding-left: #{8 / $base-font-size}rem;
}