A Bug displayed in codeshelper style

just now when I was searching codeshelper for materials, I found a style display bug, like the following figure.

clipboard.png

here I am not sure whether it is specially designed or really Bug
my computer is macbook air
browser is chrome.67
my friends can also test it, because I can"t find the bug feedback entry, so I post here.
because it"s really hard to watch as a front-end engineer!

Mar.23,2021
The

test did not find this problem. Do you happen to have the mouse in the position of the headline?


isn't this just a hover style change


tested, there is an overflow under the gray block that is indeed selected,

looks a little awkward,

(my back end, please ignore my aesthetic)

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