.btn-start:hover{opacity:0.8;filter:alpha(opacity=80);ms-filter:"alpha(opacity=80)";transition:opacity 0.4s ease 0s}a.web_left{float:left;opacity:0.6;filter:alpha(opacity=60);ms-filter:"alpha(opacity=60)"}a.web_left:hover{opacity:1;filter:alpha(opacity=100);ms-filter:"alpha(opacity=100)";transition:opacity 0.4s ease 0s}a.web_left img{float:left;border:0px}.web_artists{width:903px;height:349px}@media only screen and (max-width: 480px){.web_artists{width:100%;height:auto}a.web_left img{width:100%;height:auto}}