.to-top{right:20px;bottom:60px;color:#666;width:40px;height:40px;font-size:16px;line-height:40px;cursor:pointer;position:fixed;overflow:hidden;text-align:center;background-color:#fff;border:2px solid #999;z-index:666;display:none}.to-top:hover{color:#333;border:2px solid #666}@media only screen and (min-device-width:768px) and (max-device-width:1024px){.sm-video-container .sm-video-popup{width:100%;height:50%;max-width:100%;display:inline-block;vertical-align:middle;position:relative;background:#fff;box-shadow:1px 1px 50px rgba(0,0,0,.3);padding:0;margin:auto}}@media only screen and (min-device-width:768px) and (max-device-width:1024px) and (orientation:landscape){.sm-video-container .sm-video-popup{width:100%;height:50%;max-width:100%;display:inline-block;vertical-align:middle;position:relative;background:#fff;box-shadow:1px 1px 50px rgba(0,0,0,.3);padding:0;margin:auto}}@media(max-width:1024px){.sm-video-container .sm-video-popup{width:100%;height:50%;max-width:100%;display:inline-block;vertical-align:middle;position:relative;background:#fff;box-shadow:1px 1px 50px rgba(0,0,0,.3);padding:0;margin:auto}}