<link href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script> <script src="//code.jquery.com/jquery-1.11.1.min.js"></script> <!------ Include the above in your HEAD tag ----------> <!-- Select Basic --> <div class="form-group"> <label class="col-md-4 control-label" for="blood_group">list select</label> <div class="col-md-4"> <select id="blood_group" name="blood_group" class="form-control"> <option value="-1">Select</option> <option value="1">A+</option> <option value="2">B+</option> <option value="3">AB+</option> <option value="4">O+</option> <option value="5">A-</option> <option value="6">B-</option> <option value="7">AB-</option>