Issue #3167785 by pivica: Fix toolbar z-index rule

// Rules for extending standard Bootstrap navbar component.

// Tweaks for core toolbar component.

.toolbar {

  &-fixed .toolbar .toolbar-tray {

    // Lets normalize a bit z-index of toolbar to be aligned with the rest of

    // bootstrap.

// Apply Bootstrap fixed z-index position to fixed toolbar.

body.toolbar-fixed .toolbar-oriented .toolbar-bar {

  z-index: $zindex-fixed;

}

  &-oriented .toolbar-tray-vertical > .toolbar-lining::before {

    // Before pseudo element is making us a problem - it is covering top

    // toolbar-tab menu items, not even sure why we need this pseudo element

    // seems it's not doing anything currently.

    display: none !important;

  }

}

// General links in menu and language blocks.

.block {

  &-menu {