Well, it looks like there is still no definitive solution, so although I am not very good with css, and I wanted something that would do it in the actual WP page I messed around and came up with this:
<div style=” position:relative; padding-left: 16px; left: 50%; margin-left:-486px; ” >[nggallery id=5]</div>
It works fine.
This is a single-image-at-a-time sideshow, and the images are pretty large … 973 px wide as a matter of fact. The padding left corrects for a shift towards the left that I couldn’t find the raisin for. I learned that in college over 50 years ago when I was a physics major. It was a common practice. If you kept coming up with the same required adjustment, you entered a “factor” in the equation to make everything neat and trim. So I figured if it was good enough for J. Robert Oppenheimer in 1945,and his Big Boy lit up the sky over Alamogordo anyway, whether the math needed to be adjusted or not, it was certainly good enough for me.
Besides, we didn’t have computers then. We used slide rules and they always required some adjusting.
Anyway, at last I have found a chance to contribute. ??
