How do I reduce post name area?

Hi I need to reduce the size of the grey block around the post name. This is setup in theme options and I chose not to have an image so I removed it, when I checked the posts the block is way too big if you don't have an image., so I need to know if I can reduce this? Here is a link to the page and you have access to view it.
http://www.littleriverbnb.com.au/?accommodation=hotel-room-4

Basically I want to just have a header without image on the post pages and an on the pages so if you reduce the space on the posts I don't want it to reduce on the pages as they have images. Hope this makes sense, cheers Kinnear