we could just wrap all those things in one extra layer of div or span tags

IMO, the markup here at the monestary is already pretty heavy. I'm also not a CSS expert, but is there any way to write a rule such that it applies to elements with a set of specified classes? For instance, if I had

<div class="node-from 57755">Look ma, a div from thor!<div>
[download]

that there'd be a way to specify "apply these rules only to elements that have both class node-from and class 57755"? If so, that's what I'd suggest. That way, if you want to ignore me, you can just put:

.57755 {
   display: none;
}
[download]

in your CSS and be done with it.

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