.jianjie { width: 670px; margin: 0 auto; } .jianjie p { text-indent: 2em; line-height: 30px; } .jianjie h1 { text-align: center; line-height: 30px; color: #F00; } .jianjie .intropic { float: left; backgrond: #eeeeee; padding: 5px; border: #cccccc 1px solid; margin-right: 15px; margin-bottom: 15px; } .dfdfk { width: 670px; margin: ato; } .dfdfk img { width: 230px; height: 260px; border: 2px solid #d2d2d2; border-radis: 5px; } .dfdfk img:hover { border: 2px solid #5EADF8; } .dfdfk td { text -align: center; line-height: 25px; border: 1px solid #d2d2d2; } .dfdfk table { border-collapse: collapse; margin-bottom: 10px; } .clear { clear: both; } .bn dl { width: 670px; text-align: center; } .bn dt { float: left; width: 25%; } .bn dt img { width: 160px; }