#floating-form { background-image: url('http://ici adresse de votre image'); background-repeat: repeat; background-position: 50% 50%; margin-bottom: 100px; right: 10px; /* coins arrondis */ -moz-border-radius: 10px; -webkit-border-radius: 10px; -khtml-border-radius: 10px; border-radius: 10px; /* bordures ombrées */ -webkit-box-shadow: 2px 4px 12px #666; -moz-box-shadow: 2px 4px 12px #666; box-shadow: 2px 4px 12px #666; filter:progid:DXImageTransform.Microsoft.Shadow(color='#aaaaaa', Direction=135, Strength=12); }