Why Aspose.Words does not understand all CSS during HTML import?
CSS provides a very flexible model for specifying formatting for a document. One can set font color red on the
element and get the whole document text colored in red (unless it is overridden in child elements). However, this model for specifying formatting is not directly compatible with Microsoft Word documents. Technically speaking, there is no way to specify font color on a document or section in a Microsoft Word document that will be inherited by all text. We plan to support CSS as best as we can, but obviously it will not be 100% possible.