This issue can be seen in demo page of EuiContextMenu (https://elastic.github.io/eui/#/navigation/context-menu). I see this issue on Chrome Version 83.0.4103.61 (Official Build) (64-bit) but cannot reproduce it on Firefox. 
This issue can be seen in demo page of EuiContextMenu (https://elastic.github.io/eui/#/navigation/context-menu).
I see this issue on Chrome Version 83.0.4103.61 (Official Build) (64-bit) but cannot reproduce it on Firefox.