You can smoothly scroll to a specified position on the page without anchor points. Implementation code_jquery

< ;style type="text/css">
.nav{width:500px;margin:10px auto;}
.nav li{float:left; width:100px; height:24px; line-height: 24px}
.box{height:500px}
.box h3{height:32px; line-height:32px; padding-left:20px; font-size:14px}
.clear{clear:both }
html,body,div,span,h1,h2,h3,h4,h5,h6,p,pre,a,code,em,img,small,strong,sub,sup,u,i,center, dl,dt,dd,ol,ul,li,fieldset,form,label{margin:0;padding:0;border:0;outline:0;font-size:100%;vertical-align:baseline;background:transparent }
a{color:#007bc4/*#424242*/; text-decoration:none;}
a:hover{text-decoration:underline}
ol,ul{list-style:none}
table{border-collapse:collapse;border-spacing:0}
body{height:100%; font:12px/18px "Microsoft Yahei", Tahoma, Helvetica, Arial, Verdana, "5b8b4f53", sans -serif; color:#51555C; background:#162934 url(../images/body_bg.gif) repeat-x}
img{border:none}
#main{width:910px; min-height: 600px; margin:30px auto 0 auto; background:#fff; -moz-border-radius:12px;-khtml-border-radius: 12px;-webkit-border-radius: 12px; border-radius:12px;}
h2.top_title{margin:4px 20px; padding-top:15px; padding-left:20px; padding-bottom:10px; border-bottom:1px solid #d3d3d3; font-size:18px; color:#a84c10;}


< ;script type="text/javascript" src="http://jt.875.cn/js/scrollto.js">