mastodon/app/javascript/styles/mastodon/about.scss

@use 'variables' as *;

$maximum-width: 1235px;
$fluid-breakpoint: $maximum-width + 20px;

.container {
  box-sizing: border-box;
  max-width: $maximum-width;
  margin: 0 auto;
  position: relative;

  @media screen and (max-width: $fluid-breakpoint) {
    width: 100%;
    padding: 0 10px;
  }
}

.brand {
  position: relative;
  text-decoration: none;
}

.rules-list {
  font-size: 15px;
  line-height: 22px;
  counter-reset: list-counter;

  li {
    position: relative;
    border-bottom: 1px solid var(--color-border-primary);
    padding: 1em 1.75em;
    padding-inline-start: 3em;
    font-weight: 500;
    counter-increment: list-counter;
    min-height: 4ch;

    button {
      background: transparent;
      border: 0;
      padding: 0;
      margin: 0;
      text-align: start;
      font: inherit;

      &:hover,
      &:focus,
      &:active {
        background: transparent;
      }

      &[aria-expanded='false'] .rules-list__hint {
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;

        @supports (-webkit-line-clamp: 2) {
          display: -webkit-box;
          -webkit-line-clamp: 2;
          -webkit-box-orient: vertical;
          white-space: normal;
        }
      }
    }

    &::before {
      content: counter(list-counter);
      position: absolute;
      inset-inline-start: 0;
      top: 1em;
      background: var(--color-bg-brand-base);
      color: var(--color-text-on-brand-base);
      border-radius: 50%;
      width: 4ch;
      height: 4ch;
      font-weight: 500;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    &:last-child {
      border-bottom: 0;
    }
  }

  &__text {
    color: var(--color-text-primary);
  }

  &__hint {
    font-size: 14px;
    font-weight: 400;
    color: var(--color-text-secondary);
  }
}

.rules-languages {
  display: flex;
  gap: 1rem;
  align-items: center;
  position: relative;

  > label {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-primary);
  }

  select {
    appearance: none;
    box-sizing: border-box;
    font-size: 14px;
    color: var(--color-text-primary);
    display: block;
    width: 100%;
    outline: 0;
    font-family: inherit;
    resize: vertical;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-primary);
    border-radius: 4px;
    padding-inline-start: 10px;
    padding-inline-end: 30px;
    height: 41px;

    @media screen and (width <= 600px) {
      font-size: 16px;
    }
  }
}