[CentOS] Is it bad for my web document folder to be user accessible?

On my computer, really the only user is me, sometimes being a regular
user, and sometimes being a super user.

Should I make a group that includes me in regular user mode, or somehow
grant permissions to me as an individual.

And... um... how do I do that?

Is it:
chmod 775 -R /var/www/html/

...?

Dave