body {
color: #000;
background: #fff;
font-family: 'PingFang SC','Helvetica Neue','Helvetica','Arial','Microsoft Yahei',sans-serif;
font-size: 12px;
min-height: 101%;
background: url() top center #cbdcec;
background-attachment: scroll;
background-size: auto auto;
background-size: 100% auto;
background-attachment: fixed;
}
#sideBar{
width: 259px;
}