how do i (for a specific slide) make all text not centered but rather left aligned?
I haven't been following this thread very lcosely, but hopefully this will help:
org-reveal allows you to specify a local.css file (M-x customize-variable org-reveal-extra-css). I keep mine in ~/src/org-reveal/local.css, but you should choose a location that works for you. I use this file to define extra css classes for nededs that reveal doesn't met out of the box.
This is a two step process. In your local.css, put something like this:
.left p, .left ul, .left li {
text-align:left; }
and then in your org file:
#+ATTR_HTML: :class left
** Slide Title
some slide content
------------------------
I *think* this should work. If it doesn't, please reply and I'll try to help.