body {
	height:100%;
	background:url("http://sas-agen.com/wp-content/uploads/fourneau-sur-mesure.jpg") no-repeat;
	background-size:cover;
	
	}

.bloc_principal {
	background:#ffffff;
	opacity:0.9;
	width:1000px;
	margin:0 auto;
	padding:20px;
	box-shadow:5px 5px 5px #222222;
	}

.bloc_centre {
	text-align:center;
	}

h1 {
	color:red;
	font-size:25px;
	text-align:center;
	width:50%;
	border:3px dotted #e47600;
	padding:10px;
	margin:0 auto;
}

h2 {
	color:#e47600;
}

.demie_colonne {float:left;width:50%;}
.clear {clear:left;}

.image_recette {margin:20px;	text-align:center;border:0;width:90%;}