resources/assets/less/admin-lte/dropdown.less
/*
 * Component: Dropdown menus
 * -------------------------
 */

/*Dropdowns in general*/
.dropdown-menu {
  box-shadow: none;
  border-color: #eee;
  > li > a {
    color: #777;
  }
  > li > a > .glyphicon,
  > li > a > .fa,
  > li > a > .ion {
    margin-right: 10px;
  }
  > li > a:hover {
    background-color: lighten(@gray, 5%);
    color: #333;
  }
  > .divider {
    background-color: #eee;
  }
}

//Navbar custom dropdown menu
.navbar-nav > .notifications-menu,
.navbar-nav > .messages-menu,
.navbar-nav > .tasks-menu {
  //fix width and padding
  > .dropdown-menu {
    > li {
      position: relative;
    }
    width: 280px;
    //Remove padding and margins
    padding: 0 0 0 0;
    margin: 0;
    top: 100%;
  }
  //Define header class
  > .dropdown-menu > li.header {
    .border-radius(4px; 4px; 0; 0);
    background-color: #ffffff;
    padding: 7px 10px;
    border-bottom: 1px solid #f4f4f4;
    color: #444444;
    font-size: 14px;
  }

  //Define footer class
  > .dropdown-menu > li.footer > a {
    .border-radius(0; 0; 4px; 4px);
    font-size: 12px;
    background-color: #fff;
    padding: 7px 10px;
    border-bottom: 1px solid #eeeeee;
    color: #444 !important;
    @media (max-width: @screen-sm-max) {
      background: #fff !important;
      color: #444 !important;
    }
    text-align: center;
    //Hover state
    &:hover {
      text-decoration: none;
      font-weight: normal;
    }
  }

  //Clear inner menu padding and margins
  > .dropdown-menu > li .menu {
    max-height: 200px;
    margin: 0;
    padding: 0;
    list-style: none;
    overflow-x: hidden;
    > li > a {
      display: block;
      white-space: nowrap; /* Prevent text from breaking */
      border-bottom: 1px solid #f4f4f4;
      // Hove state
      &:hover {
        background: #f4f4f4;
        text-decoration: none;
      }
    }
  }
}

//Notifications menu
.navbar-nav > .notifications-menu {
  > .dropdown-menu > li .menu {
    // Links inside the menu
    > li > a {
      color: #444444;
      overflow: hidden;
      text-overflow: ellipsis;
      padding: 10px;
      // Icons inside the menu
      > .glyphicon,
      > .fa,
      > .ion {
        width: 20px;
      }
    }

  }
}

//Messages menu
.navbar-nav > .messages-menu {
  //Inner menu
  > .dropdown-menu > li .menu {
    // Messages menu item
    > li > a {
      margin: 0;
      //line-height: 20px;
      padding: 10px 10px;
      // User image
      > div > img {
        margin: auto 10px auto auto;
        width: 40px;
        height: 40px;
      }
      // Message heading
      > h4 {
        padding: 0;
        margin: 0 0 0 45px;
        color: #444444;
        font-size: 15px;
        position: relative;
        // Small for message time display
        > small {
          color: #999999;
          font-size: 10px;
          position: absolute;
          top: 0;
          right: 0;
        }
      }

      > p {
        margin: 0 0 0 45px;
        font-size: 12px;
        color: #888888;
      }

      .clearfix();

    }

  }
}

//Tasks menu
.navbar-nav > .tasks-menu {
  > .dropdown-menu > li .menu {
    > li > a {
      padding: 10px;

      > h3 {
        font-size: 14px;
        padding: 0;
        margin: 0 0 10px 0;
        color: #666666;
      }

      > .progress {
        padding: 0;
        margin: 0;
      }
    }
  }
}

//User menu
.navbar-nav > .user-menu {
  > .dropdown-menu {
    .border-top-radius(0);
    padding: 1px 0 0 0;
    border-top-width: 0;
    width: 280px;

    &,
    > .user-body {
      .border-bottom-radius(4px);
    }
    // Header menu
    > li.user-header {
      height: 175px;
      padding: 10px;
      text-align: center;
      // User image
      > img {
        z-index: 5;
        height: 90px;
        width: 90px;
        border: 3px solid;
        border-color: transparent;
        border-color: rgba(255, 255, 255, 0.2);
      }
      > p {
        z-index: 5;
        color: #fff;
        color: rgba(255, 255, 255, 0.8);
        font-size: 17px;
        //text-shadow: 2px 2px 3px #333333;
        margin-top: 10px;
        > small {
          display: block;
          font-size: 12px;
        }
      }
    }

    // Menu Body
    > .user-body {
      padding: 15px;
      border-bottom: 1px solid #f4f4f4;
      border-top: 1px solid #dddddd;
      .clearfix();
      a {
        color: #444 !important;
        @media (max-width: @screen-sm-max) {
          background: #fff !important;
          color: #444 !important;
        }
      }
    }

    // Menu Footer
    > .user-footer {
      background-color: #f9f9f9;
      padding: 10px;
      .clearfix();
      .btn-default {
        color: #666666;
        &:hover {
          @media (max-width: @screen-sm-max) {
            background-color: #f9f9f9;
          }
        }
      }
    }
  }
  .user-image {
    float: left;
    width: 25px;
    height: 25px;
    border-radius: 50%;
    margin-right: 10px;
    margin-top: -2px;
    @media (max-width: @screen-xs-max) {
      float: none;
      margin-right: 0;
      margin-top: -8px;
      line-height: 10px;
    }
  }
}

/* Add fade animation to dropdown menus by appending
 the class .animated-dropdown-menu to the .dropdown-menu ul (or ol)*/
.open:not(.dropup) > .animated-dropdown-menu {
  backface-visibility: visible !important;
  .animation(flipInX .7s both);

}

@keyframes flipInX {
  0% {
    transform: perspective(400px) rotate3d(1, 0, 0, 90deg);
    transition-timing-function: ease-in;
    opacity: 0;
  }

  40% {
    transform: perspective(400px) rotate3d(1, 0, 0, -20deg);
    transition-timing-function: ease-in;
  }

  60% {
    transform: perspective(400px) rotate3d(1, 0, 0, 10deg);
    opacity: 1;
  }

  80% {
    transform: perspective(400px) rotate3d(1, 0, 0, -5deg);
  }

  100% {
    transform: perspective(400px);
  }
}

@-webkit-keyframes flipInX {
  0% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, 90deg);
    -webkit-transition-timing-function: ease-in;
    opacity: 0;
  }

  40% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, -20deg);
    -webkit-transition-timing-function: ease-in;
  }

  60% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, 10deg);
    opacity: 1;
  }

  80% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, -5deg);
  }

  100% {
    -webkit-transform: perspective(400px);
  }
}

/* Fix dropdown menu in navbars */
.navbar-custom-menu > .navbar-nav {
  > li {
    position: relative;
    > .dropdown-menu {
      position: absolute;
      right: 0;
      left: auto;
    }
  }
}

@media (max-width: @screen-sm-max) {
  .navbar-custom-menu > .navbar-nav {
    float: right;
    > li {
      position: static;
      > .dropdown-menu {
        position: absolute;
        right: 5%;
        left: auto;
        border: 1px solid #ddd;
        background: #fff;
      }
    }
  }
}
