#bloc_page{
width:900px;
margin:auto;
}


nav{
display:inline-block;
text-align:right;
width:740px;
}
nav ul{
list-style-type:none;

}
nav a{
font-size: 2em;
color:red;
padding-bottom:3px;
text-decoration:none;
}
nav li{
display:inline-block;
margin-right:15px;

}
nav a: hover{
color:#760001;
border-bottom:3px solid #760001;
}

#banniere_image{
margin-top: 15px;
height: 200px;
border-radius: 5px;
background: url('imagescamexams/Captureentetesigec.png') no-repeat;
position: relative;
box-shadow: 0px 4px 4px #1c1a19;
margin-bottom: 25px;
}
 #banniere_description{
position: absolute;
bottom: 0;
border-radius: 0px 0px 5px 5px;
width: 99.5%;
height: 33px;
padding-top: 15px;
padding-left: 4px;
background-color: rgb(24,24,24); /* Pour les anciens navigateurs*/
background-color: rgba(24,24,24,0.8);
color: white;
font-size: 0.8em;
} 
.bouton_rouge{
display: inline-block;
height: 25px;
position: absolute;
right: 5px;
bottom: 5px;
background: url('imagescamexams/fond_degraderouge.png') repeat-x;
border: 1px solid #760001;
border-radius: 5px;
font-size: 1.2em;
text-align: center;
padding: 3px 8px 0px 8px;
color: white;
text-decoration: none;
}
 .bouton_rouge img{
border: 0;
}
#bouton_site{
width:625px;
text-align:center;
}
article{
margin-left:15px
width:625px
}
aside{
position:relative;
width:235px;
}
article,aside{
display:inline-block;
vertical-align:top;
text-align:justify;
}
#bouton_phys,#bouton_maths,#bouton_chim{
display:inline-block;
vertical-align:top;
}

.learning{
text-align:center;
}
footer{
text-align:center;
}
p{
text-align:center;
}
#message_forum{
color:red;
}
.repet_pub{
color:red;
}
.repet_info{
font-family:Impact,Arial Black,verdana,serif;
}