html {
  overflow-y: scroll;
  *overflow: auto
}

body,
div,
h1,
h2,
h3,
h4,
h5,
h6,
ul,
ol,
li,
dl,
dd,
dt,
p,
hr,
blockquote,
address,
pre,
code,
form,
fieldset,
legend,
textarea,
input,
button,
th,
td {
  margin: 0;
  padding: 0
}

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

fieldset,
img {
  border: 0
}

img {
  vertical-align: bottom
}

li {
  list-style: none
}

a {
  text-decoration: none
}

a:focus,
video:focus,
div:focus,
textarea:focus {
  outline: 0
}

sup {
  vertical-align: text-top
}

sub {
  vertical-align: text-bottom
}

body,
button,
input,
select,
textarea {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", STHeiti, "Microsoft Yahei", Tahoma, Simsun, sans-serif
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-size: 100%;
  font-weight: 400
}

address,
cite,
dfn,
em,
var {
  font-style: normal;
  font-weight: 400
}

small {
  font-size: 12px
}

abbr,
acronym {
  border: 0
}

button,
input,
select,
textarea {
  font-size: 100%
}

input:focus {
  outline: 0
}

legend {
  color: #000
}

th {
  font-weight: 700
}