* {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}
*:before,
*:after {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}
body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
code,
form,
fieldset,
legend,
input,
button,
textarea,
p,
blockquote,
th,
td {
  margin: 0;
  padding: 0;
}
body {
  color: #555;
  font-size: 14px;
  font-family: "Arial", "Microsoft YaHei", "黑体", "宋体", sans-serif;
}
td,
th,
caption {
  font-size: 14px;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: normal;
  font-size: 100%;
}
address,
caption,
cite,
code,
dfn,
em,
strong,
th,
var {
  font-style: normal;
  font-weight: normal;
}
a {
  color: #555;
  text-decoration: none;
}
a:hover {
  text-decoration: none;
}
img {
  border: none;
  vertical-align: middle;
}
ol,
ul,
li {
  list-style: none;
}
input,
textarea,
select,
button {
  font: 14px "Arial", "Microsoft YaHei", "黑体", "宋体", sans-serif;
}
table {
  border-collapse: collapse;
}
html {
  overflow-y: scroll;
}
::-webkit-scrollbar {
  width: 7px;
  height: 16px;
  background-color: #f5f5f5;
}
::-webkit-scrollbar-track {
  border-radius: 4px;
}
::-webkit-scrollbar-thumb {
  background-color: rgba(0,0,0,0.2);
  border-radius: 4px;
  -webkit-box-shadow: inset 1px 1px 10px rgba(0,0,0,0.1);
}