<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>
<form class="form-horizontal">
<fieldset>
<legend>Gesuch anlegen</legend>
<div class="form-group">
<label class="col-md-4 control-label" for="name">Firmenname</label>
<div class="col-md-4">
<input id="name" name="name" type="text" placeholder="" class="form-control input-md" required="">
</div>
</div>
<div class="form-group">
<label class="col-md-4 control-label" for="unternehmensform">Unternehmensform</label>
<div class="col-md-4">
<select id="unternehmensform" name="unternehmensform" class="form-control">
<option value="1">Option one</option>
<option value="2">Option two</option>
</select>
</div>
</div>
<div class="form-group">
<label class="col-md-4 control-label" for="branchen">Branche(n)</label>
<div class="col-md-4">
<select id="branchen" name="branchen" class="form-control" multiple="multiple">
<option value="1">Option one</option>