/* 隐藏反对按钮 */

.buryit {

display:none;

}

* 回到首页 */

#btn_home {

width: 40px;

height: 40px;

display: block;

position: fixed;

left: 67%;

bottom: 200px;

background: url("https://files.cnblogs.com/files/siwuxie095/home.bmp" )no-repeat left top;

}

  

/* 刷新页面 */

#btn_refresh {

width: 40px;

height: 40px;

display: block;

position: fixed;

left: 67%;

bottom: 160px;

background: url("https://files.cnblogs.com/files/siwuxie095/refresh.bmp" )no-repeat left top;

}

  

/* 关注博主 */

#btn_follow {

width: 40px;

height: 40px;

display: block;

position: fixed;

left: 67%;

bottom: 120px;

background: url("https://files.cnblogs.com/files/siwuxie095/follow.bmp" )no-repeat left top;

}

  

/* 邮件联系 */

#btn_at {

width: 40px;

height: 40px;

display: block;

position: fixed;

left: 67%;

bottom: 80px;

background: url("https://files.cnblogs.com/files/siwuxie095/at.bmp" )no-repeat left top;

}

  

/* 回到顶部 */

#btn_top {

width: 40px;

height: 40px;

display: none;

position: fixed;

left: 67%;

bottom: 40px;

background: url("https://files.cnblogs.com/files/siwuxie095/top.bmp" )no-repeat left top;

}

<canvasid="c_n9"width="1920"height="990"style="position: fixed; top: 0px; left: 0px; z-index: -1; opacity: 0.5;"></canvas>

<scriptsrc="https://files.cnblogs.com/files/siwuxie095/canvas-nest.min.js"></script>

#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;
}
#home {
margin: 0 auto;
width: 65%;
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 {
height: 60px;
clear: both;
}
#navigator {
font-size: 13px;
border-bottom: 1px solid #ededed;
border-top: 1px solid #ededed;
height: 50px;
clear: both;
margin-top: 25px;
}
#blogTitle h2 {
font-weight: normal;
font-size: 18px;
font-size: 1.18571429rem;
line-height: 2.546153846;
color: #757575;
float: left;
}

body{
background-image:url("https://img2.imgtn.bdimg.com/it/u=1114711929,3276089013&fm=26&gp=0.jpg");
background-repeat:no-repeat;
background-size:100%;
background-attachment: fixed;
filter:alpha(opacity=70); -moz-opacity:0.7; -khtml-opacity: 0.7; opacity: 0.7;
}