Conditional Formatting in HTML Tags -

Is there any alternative to using IF-ELSE conditioning in HTML tags

  & Lt; If true & gt; Do something & lt; / If & gt; & Lt; Rest & gt; Do something & lt; / Else & gt;  

There is, but the difference between different versions is:

< Pre> & lt ;! - [If IE 6] & gt; Things here! & Lt; [Endif] - & gt;