I am new to HTML and CSS and just practice my home page.
http://www.utdallas.edu/~siming.liu/
If I check it by validator, it will show following error messages.
https://validator.w3.org/nu/?doc=http%3A%2F%2Fwww.utdallas.edu%2F~siming.liu%2F
Warning: Using windows-1252 instead of the declared encoding iso-8859-1.
Warning: Legacy encoding windows-1252 used. Documents should use UTF-8.
Error: Internal encoding declaration utf-8 disagrees with the actual encoding of the document (windows-1252).
I've checked my raw html and CSS files' encoding and line ending, they are pure ASCII.
So they should be also UTF-8.
So what's wrong in the page?