.adver{width:1200px;margin:0 auto;}
.adver a img {width:100%;margin-top:5px;border:0;}
.content_detail{width:1200px;margin:0 auto;margin-bottom: 50px;}
.content_detail h2{font-size:22px;margin:20px auto; text-align: center}
.article_brief{font-size: 15px; text-align: center;width:100%;}
.article_brief label{margin-right:10px;}
.article_content{font-size:16px; line-height:2em;}
.article_content img{max-width: 1200px;}
.content_div{min-height:calc(100vh - 246px)}