<style type="text/css">
    
* {
    margin:0;
    padding:0;
}
html {
    _background:url(about:blank);
} /**//* 阻止闪动 in IE6 , 把空文件换成about:blank , 减少请求 */
body {
    background:#fff;
    font: 12px/1.5 Tahoma, Geneva, \\5b8b\\4f53, sans-serif;
    height:100%;
}
.custom_hide {
    display: none;
}
.mid {
    font-size:18px;
    font-weight:bold;
    color:#f9f;
    text-align:center;
    vertical-align:top;
    line-height:24px;
}
/**//** 遮罩层 **/ 
.div_masklayer {
    background:#000;
    display:none;
    filter:alpha(opacity = 50);
    opacity:0.5;
    top:0;
    left:0;
    height:100%;
    width:100%;
    z-index:999;
    position:fixed;
    _position:absolute;
_left: expression(documentElement.scrollLeft + documentElement.clientWidth - this.offsetWidth);
_top: expression(documentElement.scrollTop + documentElement.clientHeight - this.offsetHeight);
}
/**//** 弹出层 **/ 
.div_popup {
    display:none;
    width:300px;
    z-index:1000;
    background:#0aa;
    left:50%;
    top:50%;
    position:fixed!important;
    margin-left:-150px !important;
    _position:absolute;
_top:expression(eval(document.compatMode && document.compatMode=='CSS1Compat')? documentElement.scrollTop + (document.documentElement.clientHeight - this.offsetHeight)/2: /**//*IE6*/ 
document.body.scrollTop + (document.body.clientHeight - this.clientHeight)/2); /**//*IE5 IE5.5*/
}
/*图片样式*/
.img_zfb {
    width:100%;
    height:100%;
}
/*签名*/
.autograph {
    padding: 15px;
    background-color: #FFF7DC;
    border: 2px solid #FFBFBF;
    font-family:"Courier New", 微软雅黑, Consolas, Arial, 宋体;
}
.custom_hide {
    display: none;
}
.blogds {
    height:82px;
    line-height:82px;
}
a.btn_donate {
    display: inline-block;
    width: 82px;
    height: 82px;
    background: url("https://files.cnblogs.com/files/yanweidie/btn_reward.gif") no-repeat;
    _background: url("https://files.cnblogs.com/files/yanweidie/btn_reward.gif") no-repeat;
    -webkit-transition: background 0s;
    -moz-transition: background 0s;
    -o-transition: background 0s;
    -ms-transition: background 0s;
    transition: background 0s;
}
a.btn_donate:hover {
    cursor:pointer;
    background-position: 0px -82px;
    background-color:unset !important;
}
.bold {
    font-weight: bold;
}

    
</style>


/*simplememory*/
#google_ad_c1, #google_ad_c2 {display:none;}
.syntaxhighlighter a, .syntaxhighlighter div, .syntaxhighlighter code, .syntaxhighlighter table, .syntaxhighlighter table td, .syntaxhighlighter table tr, .syntaxhighlighter             table tbody, .syntaxhighlighter table thead, .syntaxhighlighter table caption, .syntaxhighlighter textarea {
font-size: 14px!important;
}
#home {
opacity: 0.80;
margin: 0 auto;
width: 85%;
min-width: 950px;
background-color: #fff;
padding: 30px;
margin-top: 30px;
margin-bottom: 50px;
box-shadow: 0 2px 6px rgba(100, 100, 100, 0.3);
}
#blogTitle h1 {
font-size: 30px;
font-weight: bold;
font-family: "Comic Sans MS";
line-height: 1.5em;
margin-top: 20px;
color: #515151;
}
#navList a:hover {
color: #4C9ED9;
text-decoration: none;
}
#navList a {
display: block;
width: 5em;
height: 22px;
float: left;
text-align: center;
padding-top: 18px;
}
#navigator {
font-size: 15px;
border-bottom: 1px solid #ededed;
border-top: 1px solid #ededed;
height: 50px;
clear: both;
margin-top: 25px;
}
.catListTitle {
margin-top: 21px;
margin-bottom: 10.5px;
text-align: left;
border-left: 10px solid rgba(82, 168, 236, 0.8);
padding: 10px 0 14px 10px;
background-color: #f5f5f5;
}
#ad_under_post_holder #google_ad_c1,#google_ad_c2{  
display: none !important;
}
body {
color: #000;
background: url(https://s1.ax1x.com/2018/07/26/PNDTsK.jpg
) fixed;
background-size: 100%;
background-repeat: no-repeat;
font-family: "Helvetica Neue",Helvetica,Verdana,Arial,sans-serif;
font-size: 12px;
min-height: 101%;
}
#topics .postTitle {
border: 0px;
font-size: 200%;
font-weight: bold;
float: left;
line-height: 1.5;
width: 100%;
padding-left: 5px;
}


div.commentform p{
margin-bottom:10px;
}
.comment_btn {
padding: 5px 10px;
height: 35px;
width: 90px;
border: 0 none;
border-radius: 5px;
background: #ddd;
color: #999;
cursor:pointer;
font-family: "Lato", Helvetica Neue, Helvetica, Microsoft Yahei, 宋体, Arial, sans-serif;
text-shadow: 0 0 1px #fff;
display: inline !important;
}
.comment_btn:hover{
padding: 5px 10px;
height: 35px;
width: 90px;
border: 0 none;
border-radius: 5px;
background: #258fb8;
color: white;
cursor:pointer;
font-family: "Lato", Helvetica Neue, Helvetica, Microsoft Yahei, 宋体, Arial, sans-serif;
text-shadow: 0 0 1px #fff;
display: inline !important;
}
#commentform_title {
background-image:none;
background-repeat:no-repeat;
margin-bottom:10px;
padding:0;
font-size:24px;
}
#commentbox_opt,#commentbox_opt + p {
text-align:center;
}
.commentbox_title {
width: 100%;
}
#tbCommentBody {
font-family:'Microsoft Yahei', Microsoft Yahei, 宋体, sans-serif;
margin-top:10px;
max-width:100%;
min-width:100%;
background:white;
color:#333;
border:2px solid #fff;
box-shadow:inset 0 0 8px #aaa;
// padding:10px;
height:250px;
font-size:14px;
min-height:120px;
}
.feedbackItem {
font-size:14px;
line-height:24px;
margin:10px 0;
padding:20px;
background:#F2F2F2;
box-shadow:0 0 5px #aaa;
}
.feedbackListSubtitle {
font-weight:normal;
}

#blog-comments-placeholder, #comment_form {
padding: 20px;
background: #fff;
-webkit-box-shadow: 1px 2px 3px #ddd;
box-shadow: 1px 2px 3px #ddd;
margin-bottom: 50px;
}
.feedback_area_title {
margin-bottom: 15px;
font-size: 1.8em;
}
.feedbackItem {
border-bottom: 1px solid #CCC;
margin-bottom: 10px;
padding: 5px;
background: rgb(248, 248, 248);
}
.color_shine {background: rgb(226, 242, 255);}
.feedbackItem:hover {-webkit-animation-name: color_shine;-webkit-animation-duration: 2s;-webkit-animation-iteration-count: infinite;}
#comment_form .title {
font-weight: normal;
margin-bottom: 15px;
}

/*下雪*/
<script>
(function($){$.fn.snow=function(options){var $flake=$('<div id="flake" />').css({'position':'absolute','top':'-50px'}).html('&#10052;'),documentHeight=$(document).height(),documentWidth=$(document).width(),defaults={minSize:10,maxSize:20,newOn:500,flakeColor:"#FFFFFF"},options=$.extend({},defaults,options);var interval=setInterval(function(){var startPositionLeft=Math.random()*documentWidth-100,startOpacity=0.5+Math.random(),sizeFlake=options.minSize+Math.random()*options.maxSize,endPositionTop=documentHeight-40,endPositionLeft=startPositionLeft-100+Math.random()*200,durationFall=documentHeight*10+Math.random()*5000;$flake.clone().appendTo('body').css({left:startPositionLeft,opacity:startOpacity,'font-size':sizeFlake,color:options.flakeColor}).animate({top:endPositionTop,left:endPositionLeft,opacity:0.2},durationFall,'linear',function(){$(this).remove()});},options.newOn);};})(jQuery);
$.fn.snow({ minSize: 5, maxSize: 50, newOn: 1000, flakeColor: '#FFF' });
</script>

/* 去掉广告 */
#site_nav_under {
    display: none;
}
.c_ad_block, .ad_text_commentbox {
    display: none;
    margin: 0;
    padding: 0;
}
#ad_under_google {
    height: 0;
    overflow: hidden;
}
#ad_under_google a {
    display: none;
}


/* 删除反对按钮,有点邪恶了 */
.buryit{
  display: none;
}

#Snow{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 99999;
    background: rgba(125,137,95,0);/*最后一位表示透明度*/
    pointer-events: none;
}

<link rel="stylesheet" type="text/css" href="https://files.cnblogs.com/files/yjlblog/flat-ui.min.css"/>