.studayclass{ width:100%; overflow:auto;zoom:1; margin-top:20px;} .studayclass .class1{ width:50%;float:left; text-align:center} .studayclass .class2{width:50%;float:left; text-align:center} .studayclass img{ text-align:center} .studayclass .class1-tit{ font-size:16px; padding-bottom:10px}