devto-clone/src/Scss/_leftsidebar.scss

.hidden {
  display: none;
}

.leftBar {
  .hidden {
    display: none;
  }

  &__menu {
    ul li a {
      display: flex;
      align-items: center;
      padding: 0.5rem;
      color: var(--main-9);

      i {
        font-size: 1.25rem;
        padding-right: 0.5rem;
      }

      &:hover {
        background-color: var(--main-a);
        color: var(--main-theme-darker);
        border-radius: 5px;
      }
    }

    .more {
      font-size: 0.875rem;
      a {
        color: var(--main-7);
        padding-left: 2rem;
      }
    }
  }

  &__social {
    display: flex;
    padding: 1rem;
    margin-top: 1rem;
    a {
      font-size: 1.5rem;
      color: var(--main-6);
      margin: 0 0.5rem;

      &:hover {
        color: var(--main-9);
      }
    }
  }

  &__taglist {
    header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0.5rem;
      padding-right: 0;

      h3 {
        font-size: 1rem;
      }
      i {
        padding: 0.5rem;
        margin-right: 1rem;
        color: var(--main-6);
        font-size: 1.5rem;
        cursor: pointer;
        border-radius: 5px;

        &:hover {
          color: var(--main-9);
          background-color: var(--main-a);
        }
      }
    }

    ul {
      height: 40vh;
      overflow-y: auto;
      margin-right: 0.75rem;
      line-height: 1.6;

      li {
        padding: 0.5rem;
        cursor: pointer;

        &:hover {
          background-color: var(--main-a);
          color: var(--main-theme-darker);
          border-radius: 5px;
        }
      }
    }
  }
}

.hamburger {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 500;

  .hidden {
    display: none;
  }

  &__content {
    max-width: 300px;
    width: 90%;
    background-color: #fff;
    height: 100%;
    overflow-y: auto;
    z-index: 1000;
    position: relative;
    header {
      display: flex;
      align-items: center;
      padding: 1rem;
      border-bottom: 1px solid var(--main-2);

      h2 {
        font-size: 1.2rem;
        flex: 1;
      }

      button {
        border-radius: 50%;
        font-size: 1.5rem;
        cursor: pointer;

        &:hover {
          box-shadow: 0 0 0 5px rgba($color: #000000, $alpha: 0.05);
          background-color: rgba($color: #000000, $alpha: 0.05);
          color: var(--font-color);
          z-index: 1;
        }
      }
    }

    &__items {
      padding: 0.5rem;

      ul li {
        line-height: 1.6;
      }
    }
  }
}