body, #primaryContent { background-image: 
url(https://t1.daumcdn.net/cafeattach/1ZFir/76f98d976924d77e187ec4a4815752396d32eb36),
url(https://t1.daumcdn.net/cafeattach/1ZFir/c06cc470b70d7abcd508fc87bdf793b8f5681c41);
background-attachment: fixed; 
background-color: #; 
background-repeat: no-repeat; 
background-position: top right, bottom right;
background-size: 750px, cover;
}