.vec {
	line-height: 30px;
	background-image: url(fleche.gif);
	background-repeat: no-repeat;
	background-position: top right;
	margin: 0px;
	padding-top: 7px;
}
.alg {
	line-height: 30px;
	background-image: url(fleche.gif);
	background-repeat: no-repeat;
	background-position: top left;
	margin: 0px;
	padding-top: 7px;
}