I'm not entirely sure which HTML standard the site I have inherited was written to - probably HTML 4 Transitional, according to the W3C validator service. I'd like to convert the site, and all its component pages, to the modern HTML 5 standard. I've found a Java tool that could potentially help with the conversion process (by normalizing the HTML). However, it looks like the conversion job needs to be done mostly manually, which I am fine with. That being said, got any suggestions for doing this? If seeing the site itself would help, this here link will take you there.