live demo at:
https://arkenidar.com/web/gh/webscript/trick-css-in-php/php-page.css?show-source
https://arkenidar.com/web/gh/webscript/trick-css-in-php/php-page.css
https://arkenidar.com/web/gh/webscript/trick-css-in-php/trick-CSS-in-PHP--Peek%2006-12-2022%2011-14.gif

	#
	# AddHandler allows you to map certain file extensions to "handlers":
	# actions unrelated to filetype. These can be either built into the server
	# or added with the Action directive (see below)
	#
	# To use CGI scripts outside of ScriptAliased directories:
	# (You will also need to add "ExecCGI" to the "Options" directive.)
	#
	#AddHandler cgi-script .cgi

	AddHandler application/x-httpd-php .php    .html .css  .js # CUSTOMization !!!!!!!!!!!!!!!!!!!!!

#   495  grep -R php /etc/apache2/
#   496  grep -R php /etc/apache2/ | grep custom
#   497  grep -R php /etc/apache2/ | grep CUSTOM
#   498  code /etc/apache2/mods-enabled/mime.conf # CUSTOMization : AddHandler application/x-httpd-php .php .html 
#   499  systemctl restart apache2
#   500  apachectl restart
#   501  history