message: Fix mobile sidebar opening when clicking on content
diff: @include mobile-only() {
  @include transition-timing;
  position: fixed;
  - top: 0;
  - left: 0;
  - right: 0;
  - bottom: 0;
  background: #181818;
  opacity: 0;
  - display: block;
  transition-property: opacity;
  + display: block;
  &.visible {
  + top: 0;
  + left: 0;
  + right: 0;
  + bottom: 0;
  opacity: 0.5;
  }
  }
  