.aaa {height: 61px; border: 1px solid #acacac; border-bottom: 1px solid transparent; background: url(/images/on1.jpg) 0 bottom no-repeat;} .aaa>li {float: left; width: 183px;} .aaa>li>a {display: block; width: 183px; height: 45px; line-height: 61px; background: #f1f1f1; font-size: 16px; text-align: center;} .bbb {width: 6600px;} .bbb>li {float: left; display: block; padding-top: 45px; padding-bottom: 80px; width: 1100px;} .bbb>li:first-child {display: block;} /* .bbb>li>a>img {width: 600px;} */