#bbs_contents body ,#primaryContent
.comment_section,#Content
{background:
url(https://t1.daumcdn.net/cafeattach/1MThB/10a3fdbc9b1c17c7952a51c802a3e37f28e04c6d),
linear-gradient(40deg, #9eb9f9, #a79370, #70a795);
background-attachment: fixed;
background-repeat: repeat-y;
background-position: top right 200px, bottom right;
background-size:80%, 80%, cover;}
.cont_comment,#Content
{ position:relative; width:870px;left:0%; font-weight:bold; color:#000000; }