J Leslie Turriff via tde-users wrote:
Neither LibreOffice nor OpenOffice properly supports importation of HTML documents' CSS styling, either imbedded or external. The last mention of providing this feature is years old. It's very frustrating; and meanwhile, as you say, we are provided with useless "features" that provide just about nothing. :-(
HTML5 is not an office document format. Why would a office writer application support this. In fact there are just few engines that support this (ex. gecko) and perhaps not fully.
I am afraid your expectations overreach the reality.