For Adding the responsive menu in the website you need to add the below code
in your header.vue file
<!-----------Navigation-----------------> <div class="tv-main-menu tv-sticky-header bg-light"> <div class="navbar-default container"> <nav class="navbar navbar-expand-md navbar-light"> <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-label="Toggle navigation"> <span class="ti-menu"></span> </button> <div class="collapse navbar-collapse text-center" id="navbarSupportedContent"> <ul class="navbar-nav tv-reset-navbar"> <li class="nav-item"> <a class="nav-link" href="home">Home</a> </li> <li class="nav-item"> <a class="nav-link" href="aboutus">About Us</a> </li> <li class="nav-item search-list"><a href="/search" class="tv-search-btn"><i class="ti-search"></i></a></li> </ul> </div> </nav> </div> </div> <!-----------End----------------->