"Advanced Dropdown Search"
Bootstrap 4.1.1 Snippet by crazzyguti

<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script> <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <!------ Include the above in your HEAD tag ----------> <div class="container"> <div class="row"> <div class="col-lg-12"> <div class="input-group" id="adv-search"> <input type="text" class="form-control" placeholder="Search for snippets"> <div class="input-group-btn"> <div class="btn-group" role="group"> <div class="dropdown dropdown-lg"> <button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown" aria-expanded="false"><span class="caret"></span> </button> <div class="dropdown-menu dropdown-menu-right" role="menu"> <form class="" role="form"> <div class="form-group"> <label for="filter">Filter by</label> <select class="form-control"> <option value="0" selected>All Snippets</option> <option value="1">Featured</option> <option value="2">Most popular</option> <option value="3">Top rated</option> <option value="4">Most commented</option> </select> </div> <div class="form-group"> <label for="contain">Author</label> <input class="form-control" type="text"> </div> <div class="form-group"> <label for="contain">Contains the words</label> <input class="form-control" type="text"> </div> <button type="submit" class="btn btn-primary"><span class="glyphicon glyphicon-search" aria-hidden="true"></span> </button> </form> </div> </div> <button type="button" class="btn btn-primary"><span class="glyphicon glyphicon-search" aria-hidden="true"></span></button> </div> </div> </div> </div> </div> </div>
body { padding-top: 50px; } .dropdown.dropdown-lg .dropdown-menu { margin-top: -1px; padding: 6px 20px; } .input-group-btn .btn-group { display: flex; } .btn-group .btn { border-radius: 0; margin-left: -1px; } .btn-group .btn:last-child { border-top-right-radius: 4px; border-bottom-right-radius: 4px; } .btn-group .form-horizontal .btn[type="submit"] { border-top-left-radius: 4px; border-bottom-left-radius: 4px; } .form-horizontal .form-group { margin-left: 0; margin-right: 0; } .form-group .form-control:last-child { border-top-left-radius: 4px; border-bottom-left-radius: 4px; } @media screen and (min-width: 768px) { #adv-search { width: 500px; margin: 0 auto; } .dropdown.dropdown-lg { position: static; } .dropdown.dropdown-lg .dropdown-menu { min-width: 500px; } }

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