The issue is that the recipe or dataset page goes a bit further down than the bottom of the browser, thus hiding the buttons at the bottom of the code pane and the lower part of the logs.
This can be reproduced on Firefox 64 too (the issue could be renamed).
A workaround on FF is to do "Inspect element" anywhere on the page, then close the pane.
The issue is that the recipe or dataset page goes a bit further down than the bottom of the browser, thus hiding the buttons at the bottom of the code pane and the lower part of the logs.
This can be reproduced on Firefox 64 too (the issue could be renamed).
A workaround on FF is to do "Inspect element" anywhere on the page, then close the pane.