.icon{background-image:url(../img/sprite.png)}@media (-webkit-min-device-pixel-ratio:2),(min-resolution:144dpi){.icon{background-image:url(../img/sprite@2x.png);background-size:60px 47px}}.icon-i-live-chat{background-position:0 0;width:27px;height:27px}.icon-i-search{background-position:0 -27px;width:21px;height:20px}.icon-i-view{background-position:-27px 0;width:33px;height:22px}