IE5.5: First Look

Friday December 3rd, 1999

I've done some preliminary CSS testing of IE5.5 (available through Specifically I ran IE 5.5 through the battery of David Baron's CSS tests, and found some interesting results. IE 5.5's CSS support has undergone very little change from 5.0, and some regressions were noticable. IE 5.5 seems to pass test 5.3 (CSS2 Universal Selector) that IE 5.0 did not, but it fails two tests in section 6.4.4 (Parsing Test 4 and Test 5) that IE 5.0 apparently passed. There was one other that *may* have passed (9.1.2) where 5.0 failed, and one test in 10.7 *may* have failed where 5.0 passed, but I can't determine these for a certainty. Finally, IE 5.5 still does not pass the Box Acid Test.

According to MS's "What's New in Internet Explorer 5.5" page, IE 5.5 handles more "CSS styles" such as first-letter and first-line, but they don't go into any more detail.

From these results, I'm wondering if MS is giving up completely on significant advances in the CSS support in their current rendering engine. IE on the Mac is supposedly being developed to utilize a new rendering engine, codename "Tasman". Maybe Microsoft is planning something similar for their 6.0 Windows version.

In any event it does not look like the next version of IE will have significant CSS improvements as many hoped and expected.

#99 This is Zealotry Defined

by DvilAdvocate

Monday December 6th, 1999 5:26 PM

You are replying to this message

I never called /you/ a microsoft basher. You, however, did call me a "racist". And all I know is your particular posts right now seem more like trolls than my initial one did. Others here are making good pro-Mozilla points.

This isn't a war, it's natural selection and competition. I don't care if Mozilla wins or IE wins. If it's a good product, I'll use it. If it's a popular product, I'll build for it.

If IE became proprietary, I think either it wouldn't be too bad, or there would be an acceptable alternative.

I just have trouble belive Mozilla is that alternative with the delays, and the fact that you are treating it more like a war rather than doing a job. I was reading an article about a business and how both businesses became more concerned about "beating the other guy" than producing the products. And that's the whole reason I wrote a wake-up call.