Attempting a DSL on top of htmlgen for fun/learning

[PMunch]

You seem to be generating macro output which is only accidentally valid for 
htmlgen. If you change your code to this then it works fine:
    
    
    let html = traverseTree:
      dv(id = "1",
        h1(style = "value", "hello world"),
        p("This is a paragraph"))
    
    echo html
    
    
    Run

Of course you could generate output like this with your original input, but 
I'll leave that as an exercise for the reader.

P.S.: You really should try to avoid using `repr` when writing macros (apart 
from getting pretty output for debugging)