Why is the Bootstrap 4 Navbar always collapsed? [duplicate]
问题 This question already has an answer here : Bootstrap 4 toggleable navbar (1 answer) Closed 2 years ago . I updated to the v1.0-beta of ng-bootstrap. Now the navbar is always collaped. When I click on the hamburger to toggle the menu, it opens, but displays the contents vertically rather than horizontally. I've included the code for the nav below. It's the same as it before. At this point I can't tease out if the issue lies with ng-bootstrap, bootstrap 4 or a combination thereof. My ideal