img.img-etape
 {
    max-width: 450px!important;
    display: block!important;
    margin: 0 auto!important;
}
.etape-titre{
	text-align: center;
}

.main_content .bx-wrapper{
	margin : 0 auto!important;
	text-align: center;
	max-width: 1140px;
}


@media (max-width: 768px) {
  img.img-etape
	{
	    max-width: 300px!important;
	}
}