Removing backUrl messes up styling of Logo.

[meera]

Here is the code

export default (process.env.PASSWORD_PROTECT)
  ? withPasswordProtect(MyApp, {
      loginComponentProps: {
        backUrl: 'https://www.mybackurl.com/',
        logo: 'mylogo.png',
       },
    })
  : MyApp;

This shows the logo in retains the width -
If I remove the backURL parameter, the Logo image is too large.

Is it possible for me to not add backURL?