Adding simple buttons to homepage – concept images included.

I’m currently working on this website as a hobby:
http://mustwatchdb.com/

I’m looking for any help as to how I could add simple buttons that blend in with the homepage, beneath the gallery of movie posters that would link to specific posts.

Here are two concepts:
http://i.imgur.com/jI3qA.jpg
http://i.imgur.com/ORnAP.jpg

I’m not very experienced with CSS but any help whatsoever would be greatly appreciated!

Thanks!