aggiungi al contenitore #div la classe .clearfix
fammi sapere
Gia



.clearfix:after {
content: ".";
display: block;
height: 0;
clear: both;
visibility: hidden;
}

.clearfix {display: inline-table;}

/* Hides from IE-mac \*/
* html .clearfix {height: 1%;}
.clearfix {display: block;}
/* End hide from IE-mac */