body {
    color: #000;
    background: url(https://images2015.cnblogs.com/blog/969197/201703/969197-20170325160900815-1058599404.jpg) fixed;
    background-size: 100%;
    background-repeat: no-repeat;
    font-family: "Helvetica Neue",Helvetica,Verdana,Arial,sans-serif;
    font-size: 10px;
    min-height: 101%;
    display: block;
    margin: 8px;
}
* {
    margin: 0;
    padding: 0;
}
::selection {
    background-color: rgba(52, 155, 249, 0.15) !important;
    color: inherit !important;
}
::-webkit-scrollbar-track-piece {
    background-color: #fff;
}
::-webkit-scrollbar-thumb {
    min-height: 28px;
    background-color: #c2c2c2;
    background-clip: padding-box;
}
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}