html/* 自定义背景*/
{
background:url(https://images.cnblogs.com/cnblogs_com/aszeno/1974695/o_220310021415_programming-wallpaper-1920x1080.jpg) top center no-repeat rgb(240, 232, 232);
background-attachment:fixed;
}
body
{
 background: none;
}
#mainContent
{
    background: rgba(27, 27, 27, 0); /* 导航菜单半透明*/
}
/* 设置签名格式 定制css样式 */
#MySignature {
    display: none;
    background-color: #B2E866;
    border-radius: 10px;
    box-shadow: 1px 1px 1px #f0ecec;
    padding: 10px;
    line-height: 1.5;
    text-shadow: 1px 1px 1px rgb(77, 68, 68);
    font-size: 16px;
    font-family: 'Microsoft Yahei';
}
#cnblogs_post_body
{
    color: black;      
    font: 0.875em/1.5em "微软雅黑" , "PTSans" , "Arial" ,sans-serif;
    font-size: 20px;
}
#cnblogs_post_body h1    {
    text-align:center;
    background: #333366;
    border-radius: 6px 6px 6px 6px;
    box-shadow: 0 0 0 1px #5F5A4B, 1px 1px 6px 1px rgba(10, 10, 0, 0.5);
    color: #FFFFFF;
    font-family: "微软雅黑" , "宋体" , "黑体" ,Arial;
    font-size: 23px;
    font-weight: bold;
    height: 25px;
    line-height: 25px;
    margin: 18px 0 !important;
    padding: 8px 0 5px 5px;
    text-shadow: 2px 2px 3px #e0cdcd;
}
#cnblogs_post_body h2    {
    text-align:center;
    background: #006699;
    border-radius: 6px 6px 6px 6px;
    box-shadow: 0 0 0 1px #5F5A4B, 1px 1px 6px 1px rgba(10, 10, 0, 0.5);
    color: #FFFFFF;
    font-family: "微软雅黑" , "宋体" , "黑体" ,Arial;
    font-size: 20px;
    font-weight: bold;
    height: 25px;
    line-height: 25px;
    margin: 18px 0 !important;
    padding: 8px 0 5px 5px;
    text-shadow: 2px 2px 3px #222222;
}
#Snow{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 99999;
    background: rgba(133, 146, 99, 0.1);
    pointer-events: none;
}
/*推荐和反对*/
#div_digg {
    padding: 10px;
    position: fixed;
    _position: absolute;
    z-index: 1000;
    bottom: 20px;
    right: 0;
    _right: 17px;
    border: 1px solid #D9DBE1;
    background-color: #FFFFFF;
    filter: alpha(Opacity=80);
    -moz-opacity: 0.8;
    opacity: 0.8;
}

.icon_favorite {
    background: transparent url('https://files.cnblogs.com/files/jackson0714/kj.gif') no-repeat 0 0;
    padding-left: 16px;
}

#blog_post_info_block a {
    text-decoration: none;
    color: #5B9DCA;
    padding: 3px;
}
<div style = "display:block;" >把博客园图标替换成自己的图标 </div>
<script type="text/javascript" language="javascript">
　　//Setting ico for cnblogs
　　var linkObject = document.createElement('link');
　　linkObject.rel = "shortcut icon";
　　linkObject.href = "https://images.cnblogs.com/cnblogs_com/aszeno/1974689/o_210513115357%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20210513195335.jpg";
　　document.getElementsByTagName("head")[0].appendChild(linkObject);
</script>
<div style = "display:block;" >把博客园图标替换成自己的图标end </div>