Bootstrap CSS Framework
I decided to use the w3.css Framework instead of Bootstrap.
If you look at the page using bootstrap.min.css there is a little intereaction between the W3.css Framework and the Bootstrap Framework. I am sure that I could work these out but I am happy with the W3.css Framework. Some of the colours and text-decoration of menu links are changed, i.e. the expandable dropdown and overlay menus items have an underline.