body,
html {
  position: relative;
}

*,
body {
  margin: 0;
  padding: 0;
  font-size: 14px;
}

* {
  border: 0;
}

*,
:after,
:before {
  box-sizing: border-box;
}

html {
  font-family: '微软雅黑', PingFangSC-Light, 'microsoft yahei', 'Helvetica Neue';
  height: 100%;
}

body {
  height: auto;
  min-height: 100%;
}

a {
  background-color: transparent;
}

img {
  vertical-align: middle;
}

.clearfix:after {
  clear: both;
  content: ' ';
  display: block;
  height: 0;
  overflow: hidden;
  visibility: hidden;
}

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