body{
    background-image: url("https://images.cnblogs.com/cnblogs_com/limcod/1952425/o_210325084920Starry_sky .jpg");
    background-position: initial;
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-origin: initial;
    background-clip: initial;
    height:100%;
    width:100%;
    }
.CalDayHeader{
   background:none;
}

.CalTodayDay{
 background:none;
}

#sideBar a:visited{
color:#000000;
}

#sideBar a:link{
color:#000000;
}

#sideBar{color:#000000;}
#footer {
    background:none;
}
/* home里面的opacity属性表示透明度*/
#home {
opacity: 0.70;
margin: 0 auto;
width: 65%;
min-width: 950px;
background-color: #fff;
padding: 30px;
margin-top: 100px;
margin-bottom: 50px;
box-shadow: 0 2px 6px rgba(100, 100, 100, 0.3);
}

#ad_t2 {
display: none;
}

.c_ad_block {
display: none;
}