.box-image-article{
    float: right;
    width: 50%;
    overflow: hidden;
    margin: 0px 0px 40px 40px;
}	
@media only screen and (max-width:700px){
    .slider-desktop{display:none}
    .img-article{width:100%}
    .box-image-article{width:100%!important}
}