strip out after

Hi guys,

i am using shortcodes. After each shortcode that is finished by </div> I got br (or br /) tag.
trying to filter them out, but i dont know how.

<div class="fullwidth">
   <div class="fullwidth-content">
     <div class="twocol-one"> content
     </div><br>
   </div><br>
   <div class="twocol-second"> content
   </div><br>
   <div class="clearboth"></div>
</div><br>

seems BR is newline from tinyMCE. And I don’t want loooong shotcode lines.

I am trying to use str_replace OR preg_replace but i cannot create correct $pattern.

Can you help me?

my function

function replace_br($content) {
$rep = str_replace("</div><br />", "</div>", $content);
return $rep; }
add_filter('the_content', 'replace_br');

not working. Probably because of white spaces between them, i think