@media (max-width:767px){#bg{display:none}}@media (min-width:768px){#bg{position:fixed;top:0;left:-50%;width:200%;height:100%;z-index:-1}#bg img{position:absolute;top:138px;left:0;right:0;bottom:0;margin:auto;min-width:50%;min-height:50%}}.clear{height:0;width:100%;clear:both}