I don't think SEO algorithm work on the code level of the page. So that's not relevant. They look at the keywords, loading time of webpage. But other than that there should be no problem for sure. Because if loading time were to be problem, lot of sites would be banned. So CSS, JS and HTML version has no impact on the SEO algorithm.I don't think SEO algorithm work on the code level of the page. So that's not relevant. They look at the keywords, loading time of webpage. But other than that there should be no problem for sure. Because if loading time were to be problem, lot of sites would be banned. So CSS, JS and HTML version has no impact on the SEO algorithm.
