lbry.tech/app/sass/partials/_navigation.scss

.navigation {
  width: 100%;
  top: 0; left: 0;

  background-color: $lbry-white;
  box-shadow: 0 1px 5px rgba($lbry-black, 0.1);
  padding-right: env(safe-area-inset-right);
  padding-left: env(safe-area-inset-left);
  position: fixed;
  z-index: 10;

  > ul:first-of-type {
    overflow: hidden;
    position: relative;

    @media (min-width: 701px) {
      align-items: stretch;
      display: flex;
      flex-flow: row wrap;
    }

    @media (max-width: 700px) {
      width: 100%;

      overflow: auto;
      overflow-scrolling: touch; // sass-lint:disable-line no-misspelled-properties
      white-space: nowrap;

      &::before {
        width: 2rem; height: 4rem;
        top: 0; right: 0;

        background-image: linear-gradient(90deg, rgba($lbry-white, 0), $lbry-white 50%, $lbry-white); // iOS Safari cannot handle `transparent`
        content: "";
        position: fixed;
        z-index: 2;
      }
    }
  }
}

.navigation__item {
  // overflow: hidden;
  position: relative;

  @media (max-width: 700px) {
    display: inline-block;
    transform: translate3d(0, 0, 0);
    transition: opacity 0.2s 0.2s ease, transform 0.4s 0.2s cubic-bezier(0.215, 0.61, 0.355, 1);
    vertical-align: top;

    &:last-of-type {
      margin-right: 3rem;
    }
  }

  &:not(:hover) {
    a::after {
      bottom: -3px;
    }
  }

  &:hover,
  &.active {
    a::after {
      bottom: 0;
    }
  }

  &:first-of-type {
    @include hide-text;
    width: 10rem; height: 3rem;
    top: 0.5rem;

    // background-image: url("/assets/media/svg/logo.svg");
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 320 250' xmlns='http://www.w3.org/2000/svg'%3E %3Cpath fill='%23222' d='M296.05, 85.9l0, 14.1l-138.8, 85.3l-104.6, -51.3l0.2, -7.9l104, 51.2l132.2, -81.2l0, -5.8l-124.8, -60.2l-139.2, 86.1l0, 38.5l131.8, 65.2l137.6, -84.4l3.9, 6l-141.1, 86.4l-139.2, -68.8l0, -46.8l145.8, -90.2l132.2, 63.8Z'/%3E %3Cpath d='M294.25, 150.9l2, -12.6l-12.2, -2.1l0.8, -4.9l17.1, 2.9l-2.8, 17.5l-4.9, -0.8Z'/%3E %3C/svg%3E");
    background-repeat: no-repeat;
    background-size: contain;
    flex: 1;
  }

  &:not(.logo) {
    margin-right: 0.5rem;

    a {
      color: inherit;
      font-size: 1rem;
      line-height: 4rem;

      &:not([href="http://localhost:8000"]):not([href="https://lbry.io"]) {
        &::after {
          width: 100%; height: 3px;
          left: 0;

          background-color: $lbry-teal-3;
          content: "";
          position: absolute;
          transition: bottom 0.2s;
        }
      }
    }
  }

  &.parent {
    display: inline-flex;

    &:not(:hover) {
      ul {
        width: 0; height: 0;

        opacity: 0;
        visibility: hidden;
      }
    }

    &:hover {
      ul {
        width: 100%;
        padding-left: 1rem;
      }
    }

    ul {
      background-color: $lbry-white;
      display: inline-flex;
      position: relative;
      transition: opacity 0.2s;

      &::before {
        height: 100%;
        top: 0; left: 0;

        content: "→";
        font-size: 1rem;
        line-height: 4rem;
        opacity: 0.3;
        position: absolute;
      }
    }
  }

  a {
    height: 100%;
    display: block;

    &:not([href="http://localhost:8000"]):not([href="https://lbry.io"]) {
      padding-right: 0.5rem;
      padding-left: 0.5rem;
    }

    &[href="http://localhost:8000"],
    &[href="https://lbry.io"] {
      color: $lbry-white;
      padding-right: 1rem;
      padding-left: 1rem;

      &:not(:hover)::after {
        background-color: $lbry-black;
      }

      &:hover::after {
        background-color: $lbry-teal-3;
      }

      &::after {
        width: 100%; height: 2rem;
        top: 1rem; left: 0;

        border-radius: 3px;
        content: "";
        position: absolute;
        transition: background-color 0.2s;
        z-index: -1;
      }
    }
  }
}