.content{width:950px;}
.content p{font-size:14px;line-height:28px;text-indent: 2em;}
.content h4{font-size: 14px;line-height: 44px;font-weight: bold;}
.content h5{font-weight: normal;font-size: 12px;line-height: 24px;}
.f1{font-size: 22px;}
.middle{margin: 0 auto;}
.left{float: left;}
.right{float: right;}
.block{display: block;}
.ml340{margin-left: 340px;}
.ml56{margin-left: 56px;}
.ml68{margin-left: 68px;}
.ml40{margin-left: 40px;}
.ml30{margin-left: 30px;}
.ml76{margin-left: 76px;}
.mt15{margin-top: 15px;}
.mt20{margin-top: 20px;}
.ml20{margin-left: 20px;}
.pl220{padding-left: 220px;}
.w390{width: 390px;}
.w400{width: 400px;}