message: remove unnecessary center keyword
diff: @@ -25,7 +25,7 @@ const useStyles = makeStyles(theme => ({
  padding: theme.spacing(2, 2, 6),
  backgroundImage: (props: { backgroundImage: string }) =>
  props.backgroundImage,
  - backgroundPosition: '0 center',
  + backgroundPosition: 0,
  },
  content: {
  padding: theme.spacing(2),
  