.experiment-wrapper{margin:20px auto 50px;padding-bottom:140px;width:1200px}.experiment-wrapper h2{font-size:20px;line-height:27px;margin-top:10px}.experiment-wrapper h2 a{font-size:16px}.experiment-wrapper .tip{color:#888;margin-left:30px}.experiment-panel{background:#fff;margin-bottom:30px;overflow:auto;padding:40px}.experiment-panel p.desc{color:#333;line-height:26px}