.selectize-control.single .selectize-input:after {
        content: '\e259'; /*This will draw the icon*/
        font-family: "Glyphicons Halflings";
        line-height: 2;
        display: block;
        position: absolute;
        top: -5px;
        right: 0;
        background-color: white;
        padding-right: 2px;
           }
    .selectize-control.single .selectize-input.dropdown-active:after {
        content: '\e260';
        font-family: "Glyphicons Halflings";
        background-color: white;
        padding-right: 2px;
    }