Okay kiddo, let me explain to you what CSS HTML validator means in a way that is easy to understand.
When you make a website, you use special codes called HTML and CSS to create the layout and design of the website. However, sometimes these codes can have mistakes, just like when you make mistakes while coloring your coloring book.
This is where the CSS HTML validator comes in. It is like a teacher who checks your website's codes to make sure they are correct and don't have any mistakes. So, you can think of the CSS HTML validator as a helper that can find and fix any errors that you might have made while making your website.
And just like how a teacher gives you a gold star when you do a good job, the CSS HTML validator will give you a "pass" if your codes are good and free of errors. It's super important to have a "pass" in order for your website to work properly and look how you want it to.
So, the CSS HTML validator is like your personal helper who makes sure your website's codes are correct and will work properly on the internet.