移动端阿里高清解决方案

<div style='width:100px;height:100px;'>
    <div style='width:100%;height:100px;background:red;'></div>
</div>

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* {
  box-sizing: border-box;
  /* 在X5新内核Blink中，在排版页面的时候，会主动对字体进行放大，会检测页面中的主字体，当某一块字体在我们的判定规则中，认为字号较小，并且是页面中的主要字体，就会采取主动放大的操作。然而这不是我们想要的，可以采取给最大高度解决 */
  max-height: 100000px;
}
*:before, *:after {
    box-sizing: border-box;
  max-height: 100000px;
}*, *:before, *:after {
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

html, body, div, span, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, address, cite, code, del, dfn, em, img, ins, kbd, q, samp, small, strong, sub, sup, var, b, i, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th,textarea, td {
  border: 0 none;
  font-size: inherit;
  color: inherit;
  margin: 0;
  padding: 0;
  vertical-align: baseline;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: normal;
}

em, strong {
  font-style: normal;
}

ul, ol, li {
  list-style: none;
}

body {
    font-family: "Helvetica Neue",Helvetica,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","\5FAE\8F6F\96C5\9ED1",Arial,sans-serif;
    line-height: 1.5;
    color: #333;
    background-color: #f2f2f2;
    font-size: 0.24rem;
}

a {
  text-decoration: none;
}
.box{
  position: relative;
  max-width: 10rem;
  margin: 0 auto;
}