html,
body {
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    font-size: 12px;
    font-family: "Microsoft Yahei";
    color: #333;
}
html,
body,
div,
ul,
ol,
li,
dl,
dt,
dd,
h1,
h2,
h3,
h4,
h5,
h6,
p,
table,
th,
td,
form,
fieldset,
legend,
input,
textarea,
select,
button,
hr,
blockquote,
pre {
    margin: 0;
    padding: 0;
    outline: none;
}
h1,
h2,
h3,
h4,
h5,
h6 {
    font-size: 100%;
    font-weight: bold;
    line-height: 1.2;
}
ul,
ol,
dl {
    list-style-type: none;
}
fieldset,
img {
    border: none;
}
table {
    border-collapse: collapse;
    table-layout: fixed;
    empty-cells: show;
}
caption,
th {
    text-align: left;
    font-weight: normal;
}
address,
caption,
cite,
code,
dfn,
th {
    font-style: normal;
    font-weight: normal;
}
input,
select,
textarea,
textarea {
    vertical-align: top;
}
img {
    vertical-align: middle;
}
em,
i {
    font-style: normal;
}
ins {
    text-decoration: underline;
}
del {
    text-decoration: line-through;
}
q:before,
q:after {
    content: "";
}
hr {
    margin: 4px 0;
    border: none;
    border-top: 1px solid #ccc;
    border-bottom: 1px solid #fff;
    _display: block;
    _margin: -5px 0;
    _font-size: 0;
    _line-height: 0;
}
a {
    text-decoration: none;
}
a:active {
    opacity: .7;
}
.flex{
    display: flex;
}