<style type="text/css">
.kolon { float:left; border:1px solid red; padding:10px; margin:10px; }
</style>

<div class="kolon">1 nolu div </div>
<div class="kolon"> 2 nolu div </div>
<div class="kolon"> 3 nolu div </div>
<div class="kolon"> 4 nolu div </div>
<div style='clear: both'/>