unity/resources/sass/user/components/drawer/_drawer.scss

// Drawer

.app-drawer-wrapper {
  width: 450px;
  height: 100%;
  position: fixed;
  right: -450px;
  top: 0;
  transition: all .2s;
  z-index: 9999;

  &.drawer-open {
    right: 0;
    box-shadow: $box-shadow-lg-default;

    &::before {
      opacity: 1;
    }
  }
}

.drawer-content-wrapper {
  background: $white;
  position: relative;
  height: 100%;

  .drawer-heading {
    font-size: $font-size-sm;
    color: $body-color;
    margin: 0;
    background: $gray-100;
    padding: ($layout-spacer-x / 2) $layout-spacer-x;
    border-bottom: $gray-300 solid 1px;
    border-top: $gray-300 solid 1px;

    &:first-child {
      border-top: 0;
    }
  }

  .drawer-section {
    padding: $layout-spacer-x;
  }

  & > .app-sidebar__heading:first-child {
    margin-top: 0;
  }
}

.drawer-nav-btn {
  @include border-radius(30px);
  background: $white;
  position: absolute;
  right: $layout-spacer-x / 2;
  top: $layout-spacer-x / 2;
  padding: ($layout-spacer-x / 3);
  box-shadow: $box-shadow-sm;
  z-index: 20;

  .hamburger {
    margin-top: 4px;
  }
}