<div class="caisse">

	<form action="" method="post">
	<table summary="Gestion de la caisse">
	<tr><td class="gauche">Prix :</td><td><input type="text" name="prix" size="8" value="" /></td></tr>
	<tr><td class="gauche">-20% :</td><td><input type="checkbox" name="20" /></td></tr>
	<tr><td></td></tr>
	<tr><td></td><td><input type="submit" name="total" value="Total" /></td></tr>
	</table>
	</form><!--Fin div caisse-->
</div>

<div class="resume">

Résumé du jour

<table summary="Payements de la journee">
<tr><td class="resume-table">..:: Prix ::..</td><td class="resume-table">..:: Modifier ::..</td><td class="resume-table">..:: Effacer ::..</td></tr>
</table>
		

<!--Fin div resume-->
</div>

.caisse{
	width: 210px ;
	left: 0 ;
	border: 1px solid blue ;
}

.resume{
	float: right ;
	width: 400px ;
}