Ghost/ghost/admin/assets/sass/components/dropdowns.scss

// ------------------------------------------------------------
// Dropdown menus
//
// Styles for the dropdown component
//
// * Base Styles
// * States
// * Open & Close
// * Dropdown triangles placeholder styles
// * Dropdown triangles classes
// ------------------------------------------------------------


//
// Base Styles
// --------------------------------------------------

// The dropdown wrapper <div>
.dropdown {
    position: relative;
}

// Prevent the focus on the dropdown toggle when closing dropdowns
.dropdown-toggle:focus {
    outline: 0;
}

// The dropdown menu <ul>
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1000;

    float: left;
    min-width: 220px;
    padding: 5px 0;
    margin: 2px 0 0; // override default ul

    background-color: #fff;
    border: darken($lightgrey, 15%) 1px solid;
    border-radius: 2px;
    box-shadow: rgba(0,0,0,0.175) 0 2px 6px;
    background-clip: padding-box;

    list-style: none;
    font-size: 1.4rem;
    font-weight: normal;
    text-transform: none;
    letter-spacing: 0;
    text-align: left;

    // Aligns the dropdown menu to right
    &.pull-right {
        right: 0;
        left: auto;
    }

    // Dividers (basically an hr) within the dropdown
    .divider {
        height: 1px;
        margin: 4px 0;
        overflow: hidden;
        background: darken($lightgrey, 5%);
    }

    // Links within the dropdown menu
    > li > a,
    > li > button {
        display: block;
        width: 100%;
        padding: 3px 20px;
        clear: both;

        font-weight: normal;
        line-height: 1.9em;
        text-align: left;
        color: #333;
        white-space: nowrap;

        transition: none;
    }

    i {
        font-size: 0.9em;
        margin-right: 0.5rem;
    }
}//.dropdown-menu


//
// States
// --------------------------------------------------

// Hover/Focus state
.dropdown-menu > li > a,
.dropdown-menu > li > button {
    &:hover,
    &:focus {
        text-decoration: none;
        color: #fff;
        background: $blue;
    }
}

// Active state
.dropdown-menu > .active > a,
.dropdown-menu > .active > button {
    &,
    &:hover,
    &:focus {
        color: #fff;
        text-decoration: none;
        outline: 0;
        background-color: #428bca;
    }
}

// Disabled state
// Gray out text and ensure the hover/focus state remains gray
.dropdown-menu > .disabled > a,
.dropdown-menu > .disabled > button {

    &,
    &:hover,
    &:focus {
        color: #777;
    }
}

// Nuke hover/focus effects
.dropdown-menu > .disabled > a,
.dropdown-menu > .disabled > button {

    &:hover,
    &:focus {
        text-decoration: none;
        background-color: transparent;
        background-image: none; // Remove CSS gradient
        cursor: not-allowed;
    }
}


//
// Open & Close
// --------------------------------------------------

// Open state for the dropdown
.open {

    // Show the menu
    > .dropdown-menu {
        display: block;
    }

    // Remove the outline when :focus is triggered
    > a {
        outline: 0;
    }
}

// Closed state for the dropdown
.closed {
    > .dropdown-menu {
        display: none;
    }
}


//
// Dropdown triangles placeholder styles
// --------------------------------------------------

%dropdown-triangle {
    &:before {
        content: '';
        position: absolute;
        display: block;
    }//&:before

    &:after {
        content: '';
        position: absolute;
        z-index: -1;
    }//&:after
}

%dropdown-triangle-top {
    &:before {
        @include triangle($dropdown_triangle, #fff, up);
        top: -$dropdown_triangle;
    }
    &:after {
        @include triangle($dropdown_triangle + 2, darken($lightgrey, 15%), up);
        top: -($dropdown_triangle + 2);
    }
}
%dropdown-triangle-bottom {
    &:before {
        @include triangle($dropdown_triangle, #fff, down);
        bottom: -$dropdown_triangle;
    }
    &:after {
        @include triangle($dropdown_triangle + 2, darken($lightgrey, 15%), down);
        bottom: -($dropdown_triangle + 2);
    }
}
%dropdown-triangle-center {
    &:before {
        left: 50%;
        margin-left: -($dropdown_triangle / 2);
    }
    &:after {
        left: 50%;
        margin-left: -($dropdown_triangle / 2 + 2);
    }
}

%dropdown-triangle-left {
    &:before {
        left: ($dropdown_triangle / 2 + 2);
    }
    &:after {
        left: ($dropdown_triangle / 2);
    }
}
%dropdown-triangle-right {
    &:before {
        left: auto;
        right: ($dropdown_triangle / 2 + 2);
    }
    &:after {
        left: auto;
        right: ($dropdown_triangle / 2);
    }
}

//
// Dropdown triangles classes
// --------------------------------------------------

.dropdown-triangle-top {
    @extend %dropdown-triangle;
    @extend %dropdown-triangle-top;
    @extend %dropdown-triangle-center;
}
.dropdown-triangle-top-left {
    @extend %dropdown-triangle;
    @extend %dropdown-triangle-top;
    @extend %dropdown-triangle-left;
}
.dropdown-triangle-top-right {
    @extend %dropdown-triangle;
    @extend %dropdown-triangle-top;
    @extend %dropdown-triangle-right;
}
.dropdown-triangle-bottom {
    @extend %dropdown-triangle;
    @extend %dropdown-triangle-bottom;
    @extend %dropdown-triangle-center;
}
.dropdown-triangle-bottom-left {
    @extend %dropdown-triangle;
    @extend %dropdown-triangle-bottom;
    @extend %dropdown-triangle-left;
}
.dropdown-triangle-bottom-right {
    @extend %dropdown-triangle;
    @extend %dropdown-triangle-bottom;
    @extend %dropdown-triangle-right;
}