body{
background-image:url("https://s1.ax1x.com/2018/09/11/iF4ygU.png");
background-repeat:no-repeat;
background-size:100%;
background-attachment: fixed;
filter:alpha(opacity=100); -moz-opacity:0.8; -khtml-opacity: 0.8; opacity: 1.0;
}
#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;
}