Corporate - How to make more high the module "Search"

Hi everybody,

I would like to use completely in high (around min 85px) the module "search" (even same high of logo) to add image or text.

I search already a lot, without solution which not affect logo and main menu position.

My template Web direction: http://www.trentparkgolf.co.uk/xmas-trees
Image with what I would like is in attachment.

Many thanks in advance.
Thierry Grisard (Egypt)