Why can't the HTML source file and the reference file be opened if I directly write the name of the reference file in the same directory?

Question

Why can’t the HTML source file and the reference file be opened directly if the name of the reference file is written directly in the same directory? Is it a problem with the computer settings?

Answer 1

Path problem

Answer 2

You should be able to run the file in a real web environment. It may also be a browser problem, try another browser.