Karax: Adding elements

[herdingSheep]

How do I add HTML elements at runtime? I am aware of the following example 
[https://github.com/pragmagic/karax#event-model 
](https://github.com/pragmagic/karax#event-model) but I can not convert the 
example to anything else but a kstring. Manipulating the code ends in failure. 
What if I wanted it to be a h1 or a text entry field or a tdiv containing 
multiple elements?