body, #primaryContent{
background-image:url(https://t1.daumcdn.net/cafeattach/1MThB/2cbde450880e301b50b05ca5b3b2d82c1067f13f);
background-attachment: fixed; 
background-color:#ffffff;
background-repeat: no-repeat ; 
background-position: center bottom; 
background-size: cover; 
}