css - Resize unknown number of elements to fill width of parent container -

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i need put unknown number of divs (likely limit of 5) parent container , make sure remain equally divided. i'm not sure if can done css alone figured better ask. if know 3 divs used: 

<style>   .menu-button {      float: left;     width: 33%;   } </style> <div>    <div class="menu-button">button x</div>    <div class="menu-button">button y</div>    <div class="menu-button">button z</div> </div>

seems work, if number of .menu-button divs unknown? there better way automatically adjusts horizontally?

unfortunatly think you'll have use tables this. <td>'s resize itslef fit full width.

hth


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