Try this at home:

codice:
<div style="display:table;width:100%;">
<div style="display:table-row">

<div style="display:table-cell;">contenuto</div>
<div style="display:table-cell;width:5%;"></div>
<div style="display:table-cell;">contenuto
contenuto
contenuto
contenuto
</div>
<div style="display:table-cell;width:5%;"></div>
<div style="display:table-cell;">contenuto</div>

</div>
</div>
8)

o/ !