Bootstrap navbar-fixed-top issues [closed]

In admin-bar.min.css at 600px, #wpadminbar is changed from position:fixed to position:absolute. The reason the adminbar scrolls at mobile sizes is because a fixed-height, fixed-position element causes major problems when you tap/pinch-to-zoom in mobile browsers. So, you can fix this by overriding WP’s native css on #wpadminbar, but then the behaviour is deliberate.