I tried to validate my website with validor.w3.org. It shows some errors. I am not be able to understand how to solve them. Could you please guide me. Some of the errors are mentioned below: It is showing the source at validor website. Here I didn't understand where to solve the error in my website. It is saying as Line 108, column 312: I logged in to my wordpress site. and went to Appearance, then Editor. Now column 312 or column 12 means which file? Which files I have to edit. Could you please guide me in a right way.