Take you to understand the beginning css code of WeChat H5

<meta content =“”name =“description”>
<meta content =“”name =“keywords”>
<meta charset =“utf-8”>
<meta content =“wei.xin”name =“author”>
<meta content =“application / xhtml + xml; charset = UTF-8”http-equiv =“Content-Type”>
<meta content =“eric.wu”name =“author”>
<meta content =“telephone = no，address = no”name =“format-detection”>
<meta content =“width = device-width，initial-scale = 1.0，minimum-scale = 1.0，maximum- scale = 1.0，user-scalable = no“name =”viewport“>
身体{
   font-family：“微软雅赫”，“微软雅黑”，“微软之星”，“华文细 黑“，”Helvetica“，”Arial“，”sans-serif“;font-size：14px;单词：break-all;    }*
    {盒子大小：边框;margin：0px;padding：0px;}。
容器 {    max-width：640px;    保证金：自动;    最小高度：100％;    位置：亲戚;    显示：块;    背景大小：100％100％;  
  min-width：320px;}menu_2 {    height：50px;    宽度：100％;    max-width：640px;    border-top：1px solid＃D8D8D8;    位置：固定; 
     bottom：0px;    z-index：102;
}