.courseList{width:1600px;margin:0 auto}.courseList .cardItem{margin-bottom:10px}.courseList .cardItem .card-Item{cursor:pointer;margin-bottom:20px;font-size:14px;border:1px solid #efefef;padding:10px;border-radius:16px;color:#333}.courseList .cardItem .card-Item .studyIcon{background-color:#000;opacity:.3;text-align:right;color:#fff;height:192px;line-height:20px;margin-top:-196px}.courseList .cardItem .card-Item .videoName{padding:6px;line-height:22px;font-size:16px;text-align:left}.courseList .cardItem .card-Item:hover{background-color:#5d6fff;color:#fff}