I just noticed the
hover behaviour of Related Questions section. Below there's another section "Hot Network Questions" that is performing well on
hover. Is that a bug or is it a feature?
Edit for clarification: When hovering elements from the Related [questions] section, a 1px border is added at the bottom of the element that is being hovered. The 1px border doesn't exist in the default state of the element which causes elements below the one that's being hovered to be pushed with 1px .
Browser: Chrome, Version 57.0.2987.133 (64-bit)
OS: macOS Sierra 10.12.4
This problem is reproducible in 99% of the browser, I believe. Since it's expected behaviour when you're adding border at the bottom of an element, that doesn't exist, without the element being hovered.
Edit: The problem is obviously fixed.