.ui-grid-menu-button {
  z-index: 2;
  position: absolute;
  right: 0;
  top: 0;
  background: @headerBackgroundColor;
  border: @gridBorderWidth solid @borderColor;
  cursor: pointer;
  height: 31px;
  font-weight: normal;
}

.ui-grid-menu-button .ui-grid-icon-container {
  margin-top: 3px;
}

.ui-grid-menu-button .ui-grid-menu {
  right: 0;
  .ui-grid-menu-mid {
    overflow: scroll;
    max-height: 300px;
    border: @gridBorderWidth solid @borderColor;
  }
}

.ui-grid-menu {
  z-index: 2; // So it shows up over grid canvas
  position: absolute;
  padding: 0 10px 20px 10px;
  cursor: pointer;
  box-sizing: border-box;
}

.ui-grid-menu .ui-grid-menu-inner {
  background: @headerBackgroundColor;
  border: @gridBorderWidth solid @borderColor;
  position: relative;
  white-space: nowrap;

  .rounded(@gridBorderRadius);
  .box-shadow(e("0 10px 20px rgba(0, 0, 0, 0.2), inset 0 12px 12px -14px rgba(0, 0, 0, 0.2)"));

  // Small hidden close button that only appears when focused.
  .ui-grid-menu-close-button {
    position: absolute;
    right: 0px;
    top: 0px;
    #ui-grid-twbs > .btn();
    #ui-grid-twbs > .button-size(1px; 1px; 10px; 1; 2px);
    #ui-grid-twbs > .button-variant(transparent, transparent, transparent);
    > i {
      opacity: 0.75;
      color: black;
    }
  }
}

.ui-grid-menu .ui-grid-menu-inner ul {
  margin: 0;
  padding: 0;
  list-style-type: none;

  li {
    padding: 0px;
    button {
      min-width: 100%;
      padding: 8px;
      text-align: left;
      background: transparent;
      border: none;

      // Show a shadow when hovering over a menu item
      &:hover,
      &:focus {
        // background-color: negation(@headerBackgroundColor, #fff);
        .inner-shadow(@vertical: 0, @blur: 14px, @alpha: 0.2);
      }
      &.ui-grid-menu-item-active {
        .inner-shadow(@vertical: 0, @blur: 14px, @alpha: 0.2);
        background-color: @selectedColor;
      }
    }
  }

  // Show a bottom border on all but the last menu item
  li:not(:last-child) > button {
    border-bottom: @gridBorderWidth solid @borderColor;
  }
}