IE8 css selector

Question

To target elements only in IE browsers i\'ll use

IE6:

* html #nav li ul {
    left: -39px !important;
    border: 1px solid red;
}

Answer 1

2013 update: IE10+ no longer supports conditional comments.

Original answer:

Some people seem to be confused because this does not answer the letter of the question, only the spirit - so for clarification:

There is no such thing as a browser selector. There are hacks that take advantage of bugs and/or glitches in specific browsers' CSS parsers, but relying on these are setting yourself up for failure. There is a standard, accepted way to deal with this:

Use conditional comments to target IE only.

Example:

Everything inside the two will be ignored by all non-IE browsers as a comment, and IE versions that are less than IE8 will skip it. Only IE8 and greater will process it. 2013 update: IE10+ will also ignore it as a comment.