html {
  color: #4a4a4a;
  background: #fff;
  overflow-y: scroll;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

html * {
  outline: 0;
  -webkit-text-size-adjust: none;
  -webkit-tap-highlight-color: transparent;
  box-sizing: border-box;
}

html, body {
  font-family: PingFang SC,Microsoft YaHei,sans-serif;
  min-height: 100%;
  height: 100%;
}

body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, code, form, fieldset, legend, input, textarea, p, blockquote, th, td, hr, button, article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section {
  margin: 0;
  padding: 0;
  color: inherit;
}

input, select, textarea {
  font-size: 100%;
  border: 0;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

fieldset, img {
  border: 0;
}

abbr, acronym {
  border: 0;
  font-variant: normal;
}

del {
  text-decoration: line-through;
}

address, caption, cite, code, dfn, em, th, var {
  font-style: normal;
  font-weight: 500;
}

ol, ul {
  list-style: none;
}

caption, th {
  text-align: left;
}

h1, h2, h3, h4, h5, h6 {
  font-size: 100%;
  font-weight: 500;
}

q:before, q:after {
  content: '';
}

sub, sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sup {
  top: -.5em;
}

sub {
  bottom: -.25em;
}

ins, a {
  text-decoration: none;
}

input {
  border: 0;
  outline: 0;
}

a {
  color: inherit;
  margin: 0;
  padding: 0;
}

img {
  max-width: 100%;
  max-height: 100%;
}

.clear:after {
  content: '';
  display: block;
  clear: both;
}

.clear {
  zoom: 1;
}

.hide {
  display: none;
}

.fl {
  float: left;
}

.fr {
  float: right;
}