css ul li nested menu with a padding. How on hoover retain width of the menu? -

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example here http://jsfiddle.net/v8yhk7lr/

html 

<div class="navig_div" id="mainnavig_div" > <ul class="mnav-ul">  <li class="mnav-ul-li"><a href="#">option one</a> <ul class="mnav-ul-ul"> <li><a href="#">option 1 1</a> </li> <li><a href="#">option 1 one longer</a> </li> </ul> </li>     <li class="mnav-ul-li"><a href="#gg">option 2 long text</a> <ul class="mnav-ul-ul"> <li><a href="#">option 2 1</a> </li> <li><a href="#">option 2 1 longer</a> </li> </ul> </li>  <li class="mnav-ul-li"><a href="#">option three</a> <ul class="mnav-ul-ul"> <li><a href="#">option 3 1</a> </li> <li><a href="#">option 3 1 longer</a> </li> </ul> </li>     </ul>  </div>

css

.mnav-ul-li { float: left; display: block;   } .mnav-ul-li { display:inline-block; padding:10px 25px; } .mnav-ul-ul { display: none; } .mnav-ul-li:hover > ul { display: block; }

mouse on over option one, see nested menu. option 2 long text , option three moves right. want option 2 long text , option three remain @ same place (or option one have same width before mouse over).

can set width .mnav-ul-li { float: left; display: block; width:150px; } (example here http://jsfiddle.net/v8yhk7lr/1/) in such case longer text in 2 lines , 1 item may short text, long text, space between navigation items different. padding space same between items).

how retain width on hover (on hover keep same width before hover)?

.mnav-ul-li:hover > ul - add position: absolute;

.mnav-ul-li { float: left; display: block;  position: relative; }  .mnav-ul-li { display:inline-block; padding:10px 25px; }    .mnav-ul-ul { display: none; }    .mnav-ul-li:hover > ul { display: block; position: absolute; top: 30px; left: 0; }
<div class="navig_div" id="mainnavig_div" >  <ul class="mnav-ul">    <li class="mnav-ul-li"><a href="#">option one</a>  	<ul class="mnav-ul-ul">  	<li><a href="#">option 1 1</a> </li>  	<li><a href="#">option 1 one longer</a> </li>  	</ul>  </li>	    <li class="mnav-ul-li"><a href="#gg">option 2 long text</a>  	<ul class="mnav-ul-ul">  	<li><a href="#">option 2 1</a> </li>  	<li><a href="#">option 2 1 longer</a> </li>  	</ul>  </li>    <li class="mnav-ul-li"><a href="#">option three</a>  	<ul class="mnav-ul-ul">  	<li><a href="#">option 3 1</a> </li>  	<li><a href="#">option 3 1 longer</a> </li>  	</ul>  </li>	    </ul>    </div>


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