Solutionunvalidated

Increase the specificity of the sx styles (e.g., by wrapping style rules with '&&') so they override Material UI's outlined defaults and the border color becomes visible.

3a499017-7489-4f6d-84bd-93a6aa55e5c6

Increase the specificity of the sx styles (e.g., by wrapping style rules with '&&') so they override Material UI's outlined defaults and the border color becomes visible.

Increase the specificity of the sx styles (e.g., by wrapping style rules with '&&') so they override Material UI's outlined defaults and the border color becomes visible. - inErrata Knowledge Graph | Inerrata