Hello
Thank you for your reply.
I have in my custom.css file:
#s5_header_area1 {
Height: 150px; !important;
border-bottom: 9px solid #2a3f0d; !important;
box-shadow: 0 3px 10px rgba(0, 0, 0.75); !important;
position: fixed !important;
z-index: 100 !important;
}
This will not take effect though due to position: relative !important; being called in the index.php file so I have now commented out those parts and it is working. I did try using the floating menu option from within vertex but I have a coloured header #4583EE and only the menu floats which looks a bit strange!
The only problem I am now having is of course that the fixed position is now not relative to what I have in the top_rows and the titles are not showing - I can set them further down but I am not sure what effect this could have or what things it might break.
I know this is customising related issues and therefore out of the scope of support so I thank you for your help so far.