html,body{
    margin: 0px;
    padding: 0px;
    -ms-overflow-style:none;
    /*火狐下隐藏滚动条*/
    overflow:-moz-scrollbars-none;
}
::-webkit-scrollbar{
    display:none;
}
*{
    padding: 0;
    margin: 0;
}
.support{
    padding: 10px;
}
