.content,.content-top,.content-middle1{width: 1200px;height: 1725px;}
.content-top{height: 284px; margin-top: 3px;}
.content-top h4{font-size: 40px;letter-spacing:70px;color: red; text-align: center;}
.content-top-title{height: 66px;background-color: #69A5EE;line-height: 66px;}
.content-top-font{font-size: 12px;margin-top: 5px; line-height: 25px;}
.content-middle1{height: 533px;}
.content-title{height: 33px;background-color: #CFE2FE;}
.content-title h5{font-size:20px;text-align: center;line-height: 33px; }
.content p{text-indent: 2em;}
.img1{background: url(lyd01.gif) no-repeat;width: 400px;height: 480px;}
.img2,.img3{width: 500px;}
.img2{background:url(lyd02.gif) no-repeat;height:346px;}
.img3{background:url(lyd03.jpg) no-repeat;height:400px;}
.img1-font{width: 580px; font-size: 16px;line-height: 35px; font-family: "微软雅黑";margin-top: 140px;}
.img2-font,.img3-font{width: 480px;font-family: "微软雅黑";font-size: 15px;margin-top: 100px;line-height: 30px;}
.img3-font{margin-top: 130px;}
.content-middle2,.content-middle3{height: 400px;}
.middle{margin: 0 auto;}
.bold{font-weight: bold;}
.ml100{margin-left: 100px;}
.mt20{margin-top: 20px;}
.left{float: left;}
.ml20{margin-left: 20px;}