I have one website onto the live server, but I am facing a problem into the navigation bar. The nav Items just blink for a second or two and they disappers. Why this is happening? I have made the UI using bootstrap. you may visit the website as under www.mathrubhumigroup.com. Please inspect the site and tell me why this is behaving oddly (specially the navigation bar items).

CodePudding user response：

The navigation has disappeared because the collapse class has been applied to the navigation container, and it has the style visibility: collapse, that's why it has disappeared.

If you remove the CSS or override it with new CSS, the issue is resolved.

CSS: .navbar-expand-lg .navbar-collapse {visibility: visible !important;}