I create menu with dropdown menu, the problem is one of my li element is in 2 line, I want to automatically set the width of each li element to be displayed in 1 line
this my try with jquery

```
<ul id='navigation'>
    <li class="menu-item><a href="#">Services</a>
        <ul class="DropMenu">
            <li><a href="#">Membres1</a></li>
            <li><a href="#">Membres222222222222222</a></li>
            <li><a href="#">Membres3</a></li>
        </ul>
    <li>
</ul>
<script type="text/javascript">
    $(document).ready(function(){
    var height_dropdown = $('#navigation li ul').css( "height" );
    if (height_dropdown>47) {
        $('#navigation li ul').css( "width" )=260;
    }
    });
</script>

```