Solve the simplest CSS hack compatible with IE6, IE7, and Firefox

 

I have seen the solution here for a long time. After discussing it with zookeeper, I found that the solution is still very reliable. Of course, the only drawback is that every attribute has to go to hack, but in many practices, I only need to 'modify' 1-2 attributes.

It is easy to write:

# Somenode
{
Position: fixed;
# Position: fixed;
_ Position: fixed;
}

The first line is for Firefox and other browsers.
The second row is for IE7 (maybe the same is true for IE8 and ie9 in the future. Who knows ?)
The third row is for IE6 and older versions.
The best application is to enable IE6 to "support" position: fixed. In addition, with this principle, JavaScript is not introduced.Code(Only IE6 expressions are used.) I have a ready-made page, which is written as follows:

# FF-R
{
Position: fixed;
_ Position: absolute;
Right: 15px;
Top: 15px;
_ Top: expression (eval (document. compatmode &&
Document. compatmode = 'css1compat ')?
Documentelement. scrolltop + 15:
Document. Body. scrolltop +
(Document. Body. clientheight
-This. clientheight ));
}

Is it convenient :)