body{margin:0 auto;font-size:20 px}.gbc-sprite-img{background-image:url(../images/cssgaga.png);background-repeat:no-repeat;background-size:50.75rem 6.3rem}.gbc-mes-l{background-position:0rem 0rem;width:6.3rem;height:6.3rem}.gbc-mes-w{background-position:-6.35rem 0rem;width:6.3rem;height:6.3rem}.gbc-phone-l{background-position:-12.7rem 0rem;width:6.4rem;height:6.4rem}.gbc-phone-w{background-position:-19.05rem 0rem;width:6.4rem;height:6.4rem}.gbc-weibo-l{background-position:-25.4rem 0rem;width:6.3rem;height:6.3rem}.gbc-weibo-w{background-position:-31.75rem 0rem;width:6.3rem;height:6.3rem}.gbc-weixin-l{background-position:-38.1rem 0rem;width:6.3rem;height:6.3rem}.gbc-weixin-w{background-position:-44.45rem 0rem;width:6.3rem;height:6.3rem}