The horizontal bar is appearing in the mobile devices.

[hilayt24]

While going through the site on the mobile I found that there is a horizontal bar appearing on the screen when the secondary menu is open.

Link: ​https://developer.wordpress.org/plugins/security/

solution

  @media (max-width: 876px){
    body.responsive-show {
      overflow-x:hidden;
    }
  }