<input type="text" class="form-control" placeholder="Search …" name="q">
<span class="input-group-btn">
<button class="btn btn-default" type="submit"><span class="glyphicon glyphicon-search" aria-hidden="true"></span></button>
<input type="text" class="form-control" placeholder="Search …" name="q">
<span class="input-group-btn">
<button class="btn btn-default" type="submit"><span class="glyphicon glyphicon-search" aria-hidden="true"></span></button>