Had read this in some blog … thought it was nice to catalog this for future ref …. also could be an important interview question that you would asked some day ….

Write a snippet of CSS that will display a paragraph in blue in older browsers, red in newer browsers, green in IE6 and black in IE7

#content p{color:blue}
html>body #content p {color:red}
* html #content p{color:green}
html>body #content p {*color:black;}

In Firefox… sometimes you might have noticed that  the cursor starts blinking on the screen. It might happen when you click on any element on the page , a division or an image etc. This Blinking Cursor in the browser window is actually an ACCESSIBILITY Feature of FireFox called ‘caret browsing’. This features  allows/enables  users to select text on the page with the keyboard ( Which we normally tend to do with the use of our mouse).

Well! if you donot want this feature … simple press “F7” to toggle it to false  and vice-versa ( if you want it ON).  You could also  type “about:config” in the address bar (type in “caret” in the filter box) and simply double click to change the option “accessibility.browsewithcaret” from “true” (turn caret browsing ON) to “false” ( turn caret browsing OFF)

Many a times we feel the need to write browser specfic hacks (though it is not a good practice, we UI developers have to resort to such evils until the great Browsers Wars comes to a truce). Earlier , I had mentioned in this article For your IEs Only, how to write a CSS snippet that would be visible to IE browsers < IE7 only.

Yesterday, I had a case, where I wanted to write some FireFox specific CSS snippets. Well! I am not sure if there is a CSS code for this but there is a HTML. THERE IS A CATCH THOUGH, this piece of HTML doesnot pass HTML validation. But , anywaz! If you are stuck badly or as such, have no-regards for validation (sometime we have to be cruel), you could use the following to declare a link to a FF only stylesheet or even just code the CSS within this block. The code is

<comment> Put your FireFox only HTML/CSS/Scripts here </comment>

e.g.
    <comment>
         <style>
             /* Styles for FF only  */
             fieldset{border:1px solid #dddddd;}
          </style>
     </comment>

I”m happy for the moment …