codice:
<!-------------------- STYLE CSS DIV -----------------_!> 
<style type="text/css"> 
#container {height:100%; width: 100%; background-color: #555555;} 
.inlinea {float: left; height: 30px; } 
#uno {width: 10%; background-color: #FF0000;} 
#due {width: 80%; background-color: #222222;} 
#tre {width: 10%; background-color: #0000FF;} 
</style> 
</HEAD><BODY> 
<div id="container"> 
<div id="uno" class="inlinea">testo</div> 
<div id="due" class="inlinea">testo</div> 
<div id="tre" class="inlinea">testo</div> 
</div>

codice semplicissimo.. ma i div non compaiono manco a pagarli...