html, body {
    height: 100%;
    font-weight: normal;
    font-family: PingFangSC-Ultralight Light, Microsoft YaHei Light,
    Helvetica Neue,Arial, sans-serif;
}
html{
    font-size:50px;
}
body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
form,
fieldset,
input,
textarea,
p,
blockquote,
th,
td,
header,
nav,
section,
footer {
    padding: 0;
    margin: 0;
}

div {
    box-sizing: border-box;
}

section {
    width: 10rem;
    display: block;
}

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

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

a {
    text-decoration: none;
    display: inline-block;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
}

input,
button,
select,
textarea {
    outline: none;
}

input[type=button], input[type=submit], input[type=file], button {
    cursor: pointer;
    outline: 0;
    -webkit-appearance: none;
}

a:hover {
    text-decoration: none !important;
}

button {
    border: 0 none;
    outline: none;
}

i {
    font-style: normal;
}

img {
    border: none;
    vertical-align: middle;
}