You need to follow some steps, like there must be one more directory named as sites-available in /etc/httpd. So you need to create a file with any name in sites-available and then you need to run below command. No need to use .conf as an extension for this file.
$ a2ensite (your file name)
$ a2ensite (your file name)
for example, suppose you have created a file named as abc then your command must be
$ a2ensite abc
$ a2ensite abc
This command will create a symbolic link in /etc/httpd/site-enabled directory. Then you can run a command to check syntax and get that site up on your browser.