#bbs_contents body ,#primaryContent 
.comment_section,#Content
{
background:
url(https://t1.daumcdn.net/cafeattach/1MThB/ec5450f64861c736e43610214a2317216c0cce9d),
linear-gradient(90deg,#d4e6ec, #acd8e7);
background-attachment: fixed;
background-repeat: repeat-y;
background-position: top left 485px, bottom right;
background-size:260px 703px, cover;}
.cont_comment,#Content
{
position:relative; width:540px;left:0%;
font-weight:bold; color:#000000;
}