On certain projects e.g. eu.wikipedia.org the #contentSub and #contentSub2 elements are empty

These are styled with the following rules:

{
font-size: 84%;
line-height: 1.2em;
margin: 0 0 1.4em 1em;
color: #54595d;
width: auto;
}

When empty they therefore have height

The first paragraph also has a margin-top which due to margin collapsing adds additional whitespace.

Expected: We should probably remove these elements when empty, or disable the lineheight and margin.

I've added an override to eu.wikipedia.org as a short term fix