Sounds like the author wants his tools to be as fully featured as the code that will embody the resultant design. In that case I would recommend learning more code instead of relying on a proxy that will never be as flexible. The best designers I’ve worked with not only understand their own domain but the possibilities and limitations of how it will be executed, because they are also developers.
When someone says HTML & CSS is terrible I ask them to design something better that lets you represent user interfaces that can adapt across multiple screen sizes, and allow complex layouts that Flexbox and CSS Grid makes possible. It is easy to criticize something if you don't have to worry how you would do it better. That said, HTML & CSS is just how the world currently is. It doesn't mean that it is the best possi…
CSS does a lot of things really well, but makes some common tasks way more difficult than they need to be.