However, HTML and CSS authoring process for IE6 takes very specialtreatment for this every-web-designer's-favourite browser (sarcasm).I'm going to call it a feature, instead of pesky bug; because maybethat's why the world will always be in hunger for talented HTML author.

Everybody have their own secret sauce to workaround the IE6, but here's my 6 commandments that worth sharing:

1. Floats need display: inline; to get mixed with margin-left / right

If you do float: left; with margin-left, make sure to add display: inline;
Same thing goes to float: right; and margin-right.

2. Add font-size: 0; to short height div

You have 3 divs for a round cornered box (hat, content, shoe) andthe hat and shoe must be short height (i.e 6 pixels). Make sure to add font-size: 0; so that you'll get that short height div displayed correctly in IE6.

3. Add width: 100%; to really long div

Usually, this is the super recipe that can fix things dramaticallyfrom completely messed up displayed web site in IE6, to be neat in azap.

4. Width / height don't mix with paddings

This is a bug where IE6 wrongly count the width / height and paddinginstead of just the width / height to be the total width / height of adiv.
To counter this problem, go with two divs so that the parenthave the width / height, and the child will have the margin. You'll getthe same result.

5. Add position: relative; or floats before going position: absolute;

That's right kids! If you're planning to have a position: absolute;, you'll need a position: relative; or floats as its wrapper to the rescue.

6. Development: everything that looks nice on Firefox, someday it will be nice on IE6 too

I'm not going to lie, but this is true! That's what I said to my team back in the good old office days.
In development processusing the Firefox, don't check your site look in IE6 if you're notfinished. You'll be wasting time trying to fix the unfinished project.
The right way is to check IE6 after you finished the development. Afterthat, you can start the long and boring IE6 fixing process ;)
Butalways be remember that someday it will be nice on IE6 too. There's nothing that can't be displayed correctly in IE6. You'll find theworkaround for your problems.