:root{--animate-duration:500ms}.preview-video-box{padding-top:9.4444444444vh;box-sizing:border-box;display:flex;flex-direction:column;position:relative}.preview-video-box .preview-video{width:41.6666666667vw;height:55.5555555556vh}.preview-video-box .goback{position:absolute;right:3.7037037037vh;top:12.962962963vh}