.content{width: 1000px;background-color: #3b6ebf;}
.content p,.content h4{color: white;line-height: 24px;}
.img2,.img3,.img4,.img8{height: 26px;}
.img5,.img6,.img7{width: 238px;height: 179px;}
.img1{background: url(top.jpg) no-repeat;height: 220px;}
.img2{background: url(dh1.jpg) no-repeat;}
.img3{background: url(xgt.jpg) no-repeat;width: 400px;height: 252px;}
.img4{background: url(dh2.jpg) no-repeat;}
.img5{background: url(sn1.jpg) no-repeat;}
.img6{background: url(sn2.jpg) no-repeat;}
.img7{background: url(sn3.jpg) no-repeat;}
.img8{background: url(dh3.jpg) no-repeat;}
.img9{background: url(dt.jpg) no-repeat;width: 497px;height: 232px;}
.middle{margin: 0 auto;}
.left{float: left;}
.m10{margin: 10px;}
.mt10{margin-top: 10px;}
.mt20{margin-top: 20px;}
.mt50{margin-top: 50px;}
.ml10{margin-left: 10px;}
.ml50{margin-left: 50px;}
.ml79{margin-left: 79px;}
.w580{width: 580px;}
.w473{width: 473px;}
.ti2{text-indent: 2em;}