I try to align select and input in one line, but it turns out crooked. How to be? Or do you need to write css yourself?
div#sample_div { width: 250px; float: left; padding-left: 30px; } <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous"> <div id="sample_div"> <form> <div class="form-group field-middle_name"> <div class="col-sm-7 row"> <select name="prefix_id" id="prefix_id" class="form-control" title="Префикс" required="required"> <option value="">Префикс</option> </select> </div> <div class="col-sm-8 row"> <input type="number" name="sample_number" id="sample_number" class="form-control" placeholder="Номер" title="Номер образца" required="required"> </div> </div> <div class="help-block row"></div> </form> </div> 