I am browsing some site then I found this out webpage wp ,when I view source I found out that it’s wp(wordpress).I am just confuse how can I apply my own html files in wp ,just like in the url I posted. I think that is not the wp theme built in free or paid.they created there own html then they put it on wp.
“A child theme is a theme that inherits the functionality and styling of another theme, called the parent theme. Child themes are the recommended way of modifying an existing theme.”