Thank you for helping us by reporting bad content.
To increase or decrease the volume on a mac in smaller increments it`s actually really easy. You can do this to anything that has those little squares. All you have to do is hold down the option and shift key and then push the volume key. This is a pretty cool thing when you don`t want to go from one square to the next, simply in fourths. Trust me, it`s AMAZING!
Image Source: I took it (screenshot) I posted it on my blog first, (source link)