No, it isn't possible, since the ID selector is exact match, but since you
are posting this to an ASP.NET group, I am assuming your page is an ASP.NET
page, so why can't you just create a class selector and then set the class
attribute or CssClass Property? What is your exact scenario? Sometimes using
combinations of different types of selectors can be useful, such as
combining the Descendant, Class, ID, and Exact Attribute Value selectors. If
you let us know how you are creating the elements (static or generated by
ASP.NET) and what the basic layout of the elements is we may be able to make
some better suggestions as to what selectors to use and how to add the style
rules to your page (static or generated by ASP.NET). Good Luck!