File permission is root but not inherit the web folder

I install wordpress with web tutorial

cd /var/www/html
wget https://www.ads-software.com/latest.zip
unzip latest.zip
rm latest.zip
# remove superfluous directory
mv wordpress/* ./
rmdir wordpress/
# wordpress needs these to be writable by the webserver
mkdir wp-content/uploads wp-content/cache

But I got a problem, usually when i installed and WordPress should inherit the root folder “web” permissions, user, and group. No need manually enters the FTP credential as well, but today when i install with the code above, it seems the error with permission and could not create folder, files on folder WP-content. is it my command problem or updated WordPress version problem ?

My server environment is Nginx core with ISPconfig. i got the root access to the server and run the command inside server with account root.