body {
    background: #555 !important;
}
body {
    color: #000;
    background-color: #e6e6e6;
    font-family: "Helvetica Neue",Helvetica,Verdana,Arial,sans-serif;
    font-size: 12px;
    min-height: 101%;
}
body {
    font-family: 'PingFang SC','Microsoft YaHei','Helvetica Neue','Helvetica','Arial',sans-serif;
}
* {
    margin: 0;
    padding: 0;
}
user agent stylesheet
body {
    display: block;
    margin: 8px;
}