body{
background:#cae5e8 url(https://pic.rmb.bdstatic.com/6bc66864ba1561e55f8718c2110703df.jpeg@c_1,w_550,h_350,x_0,y_8) no-repeat;
background-size:cover;
background-attachment: fixed;
}
#Snow{      position: fixed;       top: 0;       left: 0;       width: 100%;       height: 100%;       z-index: 99999;       background: rgba(255,255,240,0.1);       pointer-events: none;  }

/*目录样式*/
#sideCatalog a{
  font-size:12px;
  font-weight:normal !important;
}

<!--home主内容圆角效果-->
#home{
border-radius:15px;
}