Good point Dave, I'd forgotten about that, but I'm not sure it's right in this case. The NCC stylesheet didn't specify a font-size for "body" directly. Instead it applied x-small merely to all TDs (with it being a table-based layout this covers all content). The 75% rule is applied to a descendant then of the cells - the span. IE does make the span 75% of x-small, it's just that x-small is bigger in IE.
The problem with their testing is probably that the design dates back about 2.5 years (I'm guessing this from looking at the meta data for the page). Back then it was for more acceptable to be IE-only.
Good point Dave, I'd forgotten about that, but I'm not sure it's right in this case. The NCC stylesheet didn't specify a font-size for "body" directly. Instead it applied x-small merely to all TDs (with it being a table-based layout this covers all content). The 75% rule is applied to a descendant then of the cells - the span. IE does make the span 75% of x-small, it's just that x-small is bigger in IE.
The problem with their testing is probably that the design dates back about 2.5 years (I'm guessing this from looking at the meta data for the page). Back then it was for more acceptable to be IE-only.