.r_30 {
	margin-left: 30px;
	}
.r_60 {
	margin-left: 60px;
	}
.r_90 {
	margin-left: 90px;
	}
.r_120 {
	margin-left: 120px;
	}
.r_150 {
	margin-left: 150px;
	}
.gauche {
	text-align: left;
	margin: 0;
}