html/* 必应每日随机背景图*/
{
background:url(https://area.sinaapp.com/bingImg/) top center no-repeat #000;
background-attachment:fixed;
}
body
{
 background: none;
}
#MySignature {
    display: none;
    background-color: #B2E866;
    border-radius: 10px;
    box-shadow: 1px 1px 1px #6B6B6B;
    padding: 10px;
    line-height: 1.5;
    text-shadow: 1px 1px 1px #FFF;
    font-size: 16px;
    font-family: 'Microsoft Yahei';
}