Contact form 7 + Wordpress - how to display your own thank you window?

Question

WordPress

I have a thank you box on my site.
How can I display it if I use contact form 7?

Default unfortunately does not fit

Answer 1

Contact form 7 has its own events, an example from the Documentation

document.addEventListener( 'wpcf7submit', function( event ) {
  if ( '123' == event.detail.contactFormId ) {
    alert( "The contact form ID is 123." );
    // do something productive
  }
}, false );

instead of an alert, you can try to show your window, and it's better to use the wpcf7mailsent event