详解JS实现列表滚动的方法

/*CSS reset*/
body,p,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,textarea,p,blockquote,th,td{margin:0;padding:0;font-family:arial,"宋体";}
table{border-collapse:collapse;border-spacing:0;}
fieldset,img{border:0;}
address,caption,cite,code,dfn,em,strong,th,var{font-style:normal;font-weight:bold;}
ol,ul{list-style-type:none;}
caption,th{text-align:left;}
h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:normal;}/*font-size:100%;的作用主要是改变它默认的大小，继承父体的字体大小*/
q:before,q:after{content:' ';}
abbr,acronym{border:0;}
.cb{clear:both;}
.cl{clear:left;}
.cr{clear:right;}
.clearfix:after{content:".";display:block;height:0;clear:both;visibility:hidden;}
.clearfix{display:inline-block;}
* html .clearfix{height:1%;}
.clearfix{display:block;}
/*主体css*/
.scroll_img_wrap{width:612px;margin: 10px auto;}
 #scroll_img{width:590px;overflow:hidden;float:left;*position:relative;border: 1px #ccc solid;}/*可视区域宽度*/
 .scroll_img_list{width:9999px;}
 .scroll_img_list li{float:left;width:140px;margin-right:10px;}/*items*/
 .scroll_img_list li p{text-align:center;}
 .scroll_img_list li p a{text-decoration:none;color:#666;}
 .left_btn,.right_btn{float:left;}