Is CSS really working differently with Harlowe 2.0? Help

DMacasaurus

So I was thinking about converting my big Path of Honors project to Harlowe 2.0 to get the hidden link benefits etc. I changed the story format from 1.2.3 to 2.0 and everything is now a mess that seems to go back the the CSS that worked in 1.2.3. For example this is the CSS I used in the 1.2.3 to color the whole screen

body{
background-image: url("https://historicalsimulations.files.wordpress.com/2016/11/bg23.png";
}

And it no longer works in 2.0

Also this

body{
background-color: #cccccc;
}

No longer works in 2.0 and it appears
tw-story won't change the whole story color
I'm probably just being dense, but any help on the specific selector for changing passage color, why the background-image no longer works, and if CSS is behaving differently in Harlowe 2.0 would be most appreciated. Trying to teach kids here.
Thanks!

greyelf

Please state the name and full version of story format being used, as it can make a difference to answers given. (eg. Harlowe 2.0.0) Also please use the code tag when posting examples - it's the C on the editor bar.

Please read point 2 in this comment. (eg. change body to tw-story in your examples.)

DMacasaurus

Thanks for the link @greyelf that answered it.
Sorry about the leaving off the last number; just figured there was only one 2.0 so far; but I can see where it would be helpful to be more precise