.sprite{background-image:url("../images/sprite@2.png");background-size:500px auto;-moz-background-size:500px auto;-o-background-size:500px auto;-webkit-background-size:500px auto}#logo{background-image:url("../images/logo@2.png");background-size:307px 31px;-moz-background-size:307px 31px;-o-background-size:307px 31px;-webkit-background-size:307px 31px}#logo2{background-image:url("../images/logo2@2.png");background-size:245px 25px;-moz-background-size:245px 25px;-o-background-size:245px 25px;-webkit-background-size:245px 25px}