<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script> <script src="//code.jquery.com/jquery-1.11.1.min.js"></script> <!------ Include the above in your HEAD tag ----------> <div class="container"> <div class="row"> <div class="input-group"> <input ref="name" id="name" type="text" class="form-control" aria-label="search by name"> <button type="button" class="btn btn-primary"> Search </button> <div class="btn-group"> <button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> <span className="caret"></span> </button> <div class="dropdown-menu dropdown-menu-right"> <form class="container"> <div class="form-group row"> <label for="type" class="col-2 col-form-label">Filter by</label> <select class="form-control col" id="type" ref="type"> <option selected>All projects</option> <option value=1>My projects</option> <option value=2>Founded projects</option> <option value=3>Invested projects</option> <option value=4>Reviewed projects</option> <option value=5>Served projects</option> <option value=6>Followed projects</option> </select> </div> <div class="form-group row"> <label for="description" class="col-2 col-form-label">Description</label> <input type="text" class="form-control col" id="description" ref="description" aria-describedby="basic-addon3"> </div> <div class="form-group row"> <label for="keywords" class="col-2 col-form-label">Keywords</label> <input type="text" class="form-control col" id="keywords" ref="keywords" placeholder="User comma to separate keywords" aria-describedby="basic-addon3"> </div> </form> </div> </div> </div> </div> </div>