But on changing paddingSize or fontSize no change is observed in EuiCode but the EuiCodeBlock works fine. I tried setting paddingSize in codeSandBox also no change is observed for EuiCode

EuiCode does not really accept paddingSize or fontSize. The props interfaces for EuiCode and EuiCodeBlock should be updated to reflect what props will have functional impact.

Originally posted by @thompsongl in #3529 (comment)