body{
width: 1000px;
min-height: 1000px;
margin: auto;
padding: 0;
font-family: "Helvetica Neue",Helvetica,Arial,sans-serif;
}

h1{
color: orange;
line-height: 100px;
font-size: 40px;
}

a{
text-decoration: none;
color: #1a447e;
}

.color_blue{
color: #1a447e;
}

.header{
width: 1000px;
height: 150px;
margin: 0;

background: url('../images/banniere_sne_moteur_electrique.PNG');
}

#contenu{
width: 1000px;
font-size: 20px;
margin-top:30px;
}

.contenu_u2{
width: 498px;
min-height: 500px;
float: left;
}

.center{
text-align: center;
}

.footer{
width: 1000px;
height: 50px;
background: url('../images/footer.png');
line-height:50px;
}

.clear{
clear: both;
}