Hiya I have this issue with a website I've made for my workplace where on the page application/contact where there's a form the menu jumps slightly between pages. Also the menu on the pages hasn't cosmetically worked properly.

Here's where I've put it up temp:

And the menus/application form should look like this:
Notice the images for rounded corners/background etc.

But for some reason isn't working - sorry as I am a bit rusty at all this! Be grateful for anyone who can help me out