Или можно в error_message.tpl вместо <form action="?" method="post"> <div class="container-inline"> <div class="input-append"> <input placeholder="Search" type="text" name="search_block_form" > <input type="submit" class="btn"> </div> </div> </form>сделать {literal}<style>.nfsf form {width: 100% !important;}</style>{/literal}<div class="row nfsf"><div class="span4 offset4">{include file='search_form.tpl'}</div></div>