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Goal: Insert a 900x200px image (already completed) in a structure (table?) with expandable "bumpers" on both sides of the header image, so that the ends of the header expand and contract to finish the header image across the entire (varying) width of the page (900px or wider).
I envision two gray blocks with a red stripe matching the red stripe on the header image to visually complete the header.
See image accompanying.
This is a custom page in a template site, and I only have access to BETWEEN (and not including) the body tags