I haven't got RSD1.5 any more, so I can't make an example for that.
But you have a couple of options:
If you want certain parts of your page, but not all, have this transition: Change in the style sheet '#fade-in p, #fade-in img' to '.fade-in' (mind the dot in front of fade-in!). And then remove the ID fade in from the column. Then you can give each element you want to fade in the class fade-in.
Otherwise, if you want the whole page to fade in, let the ID in the style sheet say just '#fade-in', and give this ID fade-in to the grid.
I think in both cases you need to first export the project as is, then pick up the custom style sheet to edit it, and then re-import it to the Resources.