How to do this HTML in C# ?

Hi forum,

I need your help in a formating matter, and my question is as follows:

I have this HTML code:
<div id= "Div1" class="flowplayer" data-swf="flowplayer.swf" data-ratio="0.4167"> <video> <source type="video/webm" src="http://mysite/Global/WebmFileSample.webm"> </video> </div>

I want to format/embed the aforementioned as C# code. I have managed to format/embed the first div tag but not the rest.
My code is: 
return string.Format("<div id=\"video{0}\"class=\"flowplayer\"data-swf=\"flowplayer.swf\"data-ratio=\"0.4167\">{1}</div>", Parameter2, Parameter3);

How to add all the div, video, and source tags all into one line ? Could you please help me in this?

I want to pass the entire html t ...