CSS, easy points: What is ".FIXFIREFOX {}html:not([dummy]) " referring to? The entire thing?

I need to know what this entire selection of CSS does:

.FIXFIREFOX {}html:not([dummy])

I have no idea and I consider these easy points for the right people.

I can certainly go look this up on the internet. However, sometimes I feel inclined to feed the Answers community with more archive.

Thanks for your answer. It's highly appreciated.

As I cannot see the rest of the code you took this from I can only answer your question in a general sense.

The line of code you provided in your question is a CSS filter which is targetting the Firefox browser. Basically it prevents users of other browsers and viewing the markup content in the same manner you chose the Firefox user to view it.

For example this piece of code causes text for some browsers to be one colour, and for Firefox users to be another colour. The bonus with this particular example is that it is compatible with IE7.

/* text green in IE (both 6 & 7) */
.classname {color: green;}

/* text red in Safari and Firefox */
html:not([dummy]) .classname {color; red}

You can see some other examples of these filters and learn more about them here:

聽聽http://en.wikipedia.org/wiki/CSS_filter

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