#feedback .student_video{padding-bottom:20px}#feedback .student_video ul{margin-top:35px;display:flex;flex-wrap:wrap;justify-content:spacing-between}#feedback .student_video ul li{width:calc(25% - 22.5px);margin-right:30px;margin-bottom:30px}#feedback .student_video ul li:nth-of-type(4n){margin-right:0}#feedback .student_video ul li img{width:100%}#feedback .student_video ul li .course_video_text{text-align:right;top:80%;padding-right:10px}#feedback .student_video h4{padding:6px 10px;text-align:center;font-size:16px}#feedback ul.commt li{margin-bottom:50px;display:none}#feedback ul.commt li .author{text-align:center}#feedback ul.commt li .author img{width:120px;height:120px;border:5px solid #12a34d;border-radius:50%}#feedback ul.commt li .txt{border:1px solid #ccc;position:relative;border-radius:5px;padding:20px}#feedback ul.commt li .txt a{position:absolute;padding:0 20px;right:50px;bottom:10px;text-decoration:none;cursor:default}#feedback ul.commt li .txt a span:first-child{color:#11a84e;font-size:20px;margin-right:15px}#feedback ul.commt li .txt a span:last-child{color:#333;font-size:14px}#feedback ul.commt li .arrow{position:absolute;width:20px;height:20px;z-index:10}#feedback ul.commt li:nth-of-type(odd) .arrow{left:-24px;top:40px;background:url(/static/pages/static/images/about_us/student-feedback/arrow_right.png)}#feedback ul.commt li:nth-of-type(odd) .txt{margin-left:-20px}#feedback ul.commt li:nth-of-type(odd) .author{float:left}#feedback ul.commt li:nth-of-type(even) .arrow{right:-24px;top:40px;background:url(/static/pages/static/images/about_us/student-feedback/arrow_left.png)}#feedback ul.commt li:nth-of-type(even) .txt{margin-right:-20px}#feedback ul.commt li:nth-of-type(even) .author{float:right}#feedback .btn{width:500px}#feedback .testi_tit{text-align:center;font-size:38px}#feedback .student_say{overflow:hidden}#feedback .student_say .student_video{width:49%;float:left;padding:15px;height:347px}#feedback .student_say .student_video div{background:#f5f5f5;padding:10px}