The Pub Folder Index File Does Not Work

Here is the URL of my ad file

when i installed magento on the server, magento adds two default .htaccess files: one in the domain directory and one in /pub, whom I renamed ".Htaccess_no" because, at that time, the css website was not working, so in the pub folder, I renamed the htacess file of "Htacess" at "Htacess_no" and the website was working and working now too. but the problem is when the user opens the url sa shows the website incorrectly, what is the solution of the index file of pub file, how mangeto websites normally handle the pub file. should I add an empty index file in the pub folder?