R/apply-style.R
    recurse_node_tree.RdDepth-first recursion into the HTML document node tree to accumulate/cascade styles
recurse_node_tree(node, xpath_styles, parent_style = list(), svg)
| node | current XML node  | 
    
|---|---|
| xpath_styles | list containing the accumulated styles for each xpath  | 
    
| parent_style | the style from the direct parent  | 
    
| svg | include SVG presentation tags in the cascade? default: FALSE  | 
    
updated xpath style lookup list