This has nothing to do with ASP.NET, this is HTML and CSS, nothing else. Clearly explained here:
http://www.tizag.com/cssT/float.php[
^].
I have no idea what do you mean by "binding" (trendy word? :-)). You either generate text in ASP.NET on server side in response to HTTP request. Call whatever method/property you have developed for text output — only you can know what it it. Alternatively, you can generate code in JavaScript on client side and assign the result to the content of some HTML DOM element. Every time you say "dynamic", you need to explain in response to what event it should be generated. It can be anything, so — program it accordingly.
—SA