Hello Guys!
I would like to say that before couple of years ago, it was very easy to create XML sitemap through third party online tools and sitemapper was also there to create, as I could have seen in some users fourms.

I am getting an error in Google search console that "your XML sitemap does not have any valid CSS" for my website http://www.hightouchelevator.com

Can anybody suggest me, how do I make it correct? I am not an expert designer, just an ordinary designer.

Thanks
With Regards

At first sight it seems possible that some, if not all, of the entries in the main.css file are read by the browser but then get ignored, being superseded by the style entries in the header of the index.html file.

I'm wondering whether perhaps that Google search console message may not mean quite what it seems to be saying. Is it perhaps referring to the situation mentioned in the paragraph above?

Please regard this not as answering your request, but rather as suggesting a possible line of enquiry that you may wish to consider. The website works fine, and your expertise is clearly greater than mine.

Frank