.content{width: 1000px;background-color: #e7eceb;}
.content h4{font-size: 30px;color: #1d5788;line-height: 60px;}
.content p{line-height: 24px;}
.img1{width: 227px;height: 153px;}

.br1{border: #94a195 4px solid;}
.br2{border:white 4px solid;}
.br3{border-bottom: #b9b9b9 solid 18px;}
.ti2{text-indent: 2em;}
.middle{margin: 0 auto;}
.left{float: left;}
.pb10{padding-bottom: 10px;}
.pl230{padding-left: 230px;}
.pl10{padding-left: 10px;}
.mb10{margin-bottom: 10px;}
.ml10{margin-left: 10px;}
.ml145{margin-left: 145px;}
.ml350{margin-left: 350px;}
.ml70{margin-left: 70px;}
.ml80{margin-left: 80px;}
.mt10{margin-top: 10px;}
.mt20{margin-top: 20px;}
.mt30{margin-top: 30px;}
.w687{width: 687px;}
.w605{width: 605px;}
.w248{width: 248px;}
.w717{width: 717px;}
.w227{width: 227px;}