@media only screen and (max-width: 1500px){

.argu{
height:455px;
}
#projet{   
height:480px;
width:100%; 
}
.scrollable {
width:850px;
height:650px;    
}
.items div {
width:850px;
}
.simple_overlay img{ 
width:650px;
height:650px;
}

}