javascript - Prevent Jquery-UI from changing styles in bootstrap nav-bar -


i have built menu bootstrap. there dropdown menu has picture in , next dropdown menu. on smaller resolutions, dropdown menu arrow changes shape box. want retain shape of arrow. however, in jquery-ui.js file causing change shape on smaller resolutions. how can prevent jquery-ui affecting arrow shape? here code , attached snapshots

arrow shape before , after resizing

<nav class="navbar navbar-default ">  <div class="container-fluid">     <!-- brand , toggle grouped better mobile display -->    <div class="navbar-header" >      <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false"> <span class="sr-only">toggle navigation</span> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button>      <a class="navbar-brand" href="market.html"><img  src="images/logo-inner.jpg"/ alt="b-hive: expand business"></a> </div>      <!-- collect nav links, forms, , other content toggling -->    <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">         <!-- form search start -->      <form class="navbar-form navbar-left" role="search" class="top-search-padding">      <div class="form-group">        <div class="search-div ui-widget"  >          <input id="tags" type="text" class="txt-search" placeholder="search people, products , services">          <button type="submit" class="btn-search"><img src="images/search-icon.png"/></button>        </div>      </div>      </form>      <!-- form search end -->      <ul class="nav navbar-nav navbar-right">        <li class="top-menu-links"><a href="#">market</a></li>        <li><a class="top-menu-links" href="#">exhibitions</a></li>        <li><a class="top-menu-links" href="#">messages</a></li>        <li><a class="top-menu-links" href="#">dashboard</a></li>        <li class="profile-pic-padding"></li>        <li class="dropdown"> <a href="#"  class="dropdown-toggle custom-dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false"><img alt = ""   class=" img-profile-pic img-circle" src="images/profile-pic.fw.png"/> <span class="caret"></span></a>          <ul class="dropdown-menu">            <li><a href="#">account</a></li>            <li><a href="#">privacy</a></li>            <li><a href="#">cart</a></li>            <li role="separator" class="divider"></li>            <li><a href="#">switch accounts</a></li>            <li role="separator" class="divider"></li>            <li><a href="#">language <span class="caret"></span></a>              <ul class="dropdown-menu">                <li><a href="#">en</a></li>                <li><a href="#">ع</a></li>              </ul>            </li>          </ul>        </li>      </ul>    </div>    <!-- /.navbar-collapse -->   </div>  <!-- /.container-fluid --> 

set css !important, cannot overridden


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