internet explorer 6 - CSS 3 column - trying to understand IE6 bug fix -

I am reading a CSS technology which is well documented.

It shows how to make a liquid central with two fixed width sidebars.

I am very clear on how technology works, but I am not sure which problem / bug is trying to fix this part of CSS (IE 6 Fix Label).

/ *** IE 6 Fix *** / * html #left {left: 150px; / * RC width * /}

I know that * html ensures that only the IE browser will read that CSS rule. What is the purpose of this improvement for IE browsers?

by article

negative margin IE 6 (full of browser window Width) pulls the left column too much to the left. We need to push it back to the full width of the correct column - to hide it from other browsers using Star-HTML hack- and we are ready to go.

IE6 There are many Shankaracharya in CSS rendering inappropriately. To organize the document systematically, some additional compensation is often required.