[SOLVED] Responsive problem: GK MUSIC Template.

<div id="gkMobileMenu">
 <select onchange="window.location.href=this.value;">
  <option value="#">Klanten / Dealer paneel</option>
  <option selected="selected" value="http://allinonewebsolution.eu/">Webdesign</option>
  <option value="/all-in-one-websolution">All-in-One Websolution</option>
  <option value="#">Custom Made</option>
  <option value="/overige-diensten">Overige Diensten</option>
  <option value="/portfolio">Portfolio</option>
  <option value="/helpdesk">Helpdesk</option>
  <option value="/contact">Contact</option>				
 </select>
</div>

<div id="gkMobileMenu">
 <select onchange="window.location.href=this.value;" id="sel5FX" class="chzn-done" style="display: none;">
	<option value="#">Klanten / Dealer paneel</option>
	<option value="http://allinonewebsolution.eu/">Webdesign</option>
	<option value="/all-in-one-websolution">All-in-One Websolution</option>
	<option value="#">Custom Made</option>
	<option value="/overige-diensten">Overige Diensten</option>
	<option value="/portfolio">Portfolio</option>
	<option value="/helpdesk">Helpdesk</option>
	<option value="/contact">Contact</option>				
 </select>
 <div id="sel5FX_chzn" class="chzn-container chzn-container-single chzn-container-single-nosearch chzn-container-active" style="width: 0px;">
  <a href="javascript:void(0)" class="chzn-single chzn-single-with-drop" tabindex="-1"><span>Klanten / Dealer paneel</span><div><b></b></div></a>		
  	<div class="chzn-drop" style="display: block; width: 0px; top: 24px;">
		 <div class="chzn-search"><input type="text" autocomplete="off" style="width: 0px;"></div>
		 <ul class="chzn-results">
			<li id="sel5FX_chzn_o_0" class="active-result result-selected highlighted" style="">Klanten / Dealer paneel</li>
			<li id="sel5FX_chzn_o_1" class="active-result" style="">Webdesign</li>
			<li id="sel5FX_chzn_o_2" class="active-result" style="">All-in-One Websolution</li>
			<li id="sel5FX_chzn_o_3" class="active-result" style="">Custom Made</li>
			<li id="sel5FX_chzn_o_4" class="active-result" style="">Overige Diensten</li>
			<li id="sel5FX_chzn_o_5" class="active-result" style="">Portfolio</li>
			<li id="sel5FX_chzn_o_6" class="active-result" style="">Helpdesk</li>
			<li id="sel5FX_chzn_o_7" class="active-result" style="">Contact</li>
		 </ul>
		</div>
 </div>
</div>