html,
body {
    width: 100%;
    font-family: "SourceHanSansSC-Regular", "Arial", "sans-serif", "黑体", "宋体";
    font-size: 100px
}

html,
body,
div,
h3,
p,
input {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-weight: normal
}

.clearfix:after {
    overflow: hidden;
    clear: both;
    height: 0;
    visibility: hidden;
    overflow: hidden;
    display: block;
}

label {
    display: block;
}

input {
    border: none;
    outline: none;
    -webkit-user-select: text
}

img {
    display: block;
}

input:-webkit-autofill {
    -webkit-box-shadow: 0 0 0px 1000px #fff inset;
}