.adver{width:1200px;margin:0 auto;}
.adver a img {width:100%;margin-top:5px;border:0;}
.solution_detail{width:1200px;margin:0 auto; min-height: 500px; margin-bottom: 50px;}
.solution_content{font-size:16px; line-height:2em;}
.solution_content img{max-width: 1200px;}
.solution_detail h2{font-size:22px;margin:20px auto; text-align: center;width: 100%;}