http://harvesthq.github.io/chosen/ - source
<link rel="stylesheet" href="css/chosen.css">
<script src="js/chosen.jquery.min.js"></script>
<select data-placeholder="Выберите статус" multiple class="chosen-select w100per" tabindex="18" id="multiple-label-example">
<option value=""></option>
<option>Asiatic Black Bear</option>
<option>Brown Bear</option>
<option >Giant Panda</option>
<option>Sloth Bear</option>
<option>Sun Bear</option>
<option>Polar Bear</option>
<option>Spectacled Bear</option>
</select>
//Jquery
$(".chosen-select").chosen();