.liste_formations.et_pb_with_background{position:relative}.liste_formations.et_pb_with_background::before{content:"";display:block;position:absolute;bottom:0;right:0;left:0;top:0;background:rgba(0,0,0,0);transition:background .5s ease-out}.liste_formations.et_pb_with_background:hover::before{background:rgba(0,0,0,.5)}