Featured content text align

Hello there. I'm using your theme and it's nice - thx lot. New in wordpress and all the stuff about it. Have an problem i want to solve - how i can align the text in the Featured content 1,2,3? I had some other problems but i found similiar posts in the forum, but nothing about that. I tryed to add something like - #homepage-featuredcontent1 { text-align: centre; } in the custom css but nothing happend. Pls tell me what can i do ? Here is link - http://www.podkrepa-plovdiv.com/ i want to align the text under the image and if it is possible to put the title on the top of it (aligned also if it is possible)?