Question is about merging two images, however in this specified case you shouldn't do that. You should put Content Image (ie. cover) into
tag, and Style Image into CSS, why?
- As I said the cover belongs to the content of the document, while that vinyl record and shadow are just a part of the page styles.
- Such separation is much more convenient to use. User can easily copy that image. It's easier to index by web-spiders.
- Finally, it's much easier to maintain.
So use a very simple code:
background: url(/style/images/cover-background.png) no-repeat;