Steps to reproduce:
Visit any one-liner code snippet, for example: 'python init list'
The copy button should be centred properly in one line answers.
98.0.4758.102 (Official Build, ungoogled-chromium) (arm64)
The background colours for 'code' snippets can be better. Currently it is black and it does not contrast well with the general theme. I would suggest moving to a lighter colour while not the same as the background, but visually different and perceivable as a colour fitting the design of the web page in general.