.explain{float: left; width: 100%;}
.explain .news{float: left; width: 100%;}
.explain .news .title{float: left; width: 100%; margin: 0px 0px 40px 0px; padding: 0px 0px 28px 0px; line-height: 44px; text-align: center; font-family: "宋体"; font-size: 28px; font-weight: bold; border-bottom: 1px solid #aaa;}
.explain .product{float: left; width: 100%; background-color: #045455;}
.explain .product .title{float: left; width: 100%; padding: 28px 0px 28px 0px; line-height: 44px; text-align: center; font-family: "宋体"; font-size: 28px; font-weight: bold; color: #fff; background:url(explain_back.png) top left; border-top: 1px dotted #999; border-bottom: 1px dotted #999;}
.explain .content{float: left; width: 100%;}
.explain .content p{float: left; width: 100%;}
.explain .content p img{float: left; max-width: 100%; display: block;}