Source: dist/css/virtual_boot.css, line 7565
7.2.3 Mobile Menu Link Disabled
Header Nav in mobile view has an expanded more list that hides the secondary nav items.
Example
Default styling
<li class="nav-item flex_auto br-b_1 br_solid br_black-2">
<!-- if disabled add these classes to the a tag -->
<a class=" [ bg_secondary-2 c_secondary-3 disabled ] a:bg_accent-n1 nav-link font_medium h:bg_acc-n2 h:c_white text_left text_center:lg p-l_4 p-l_0:lg" href="/convocation" target="_self">
<!-- If Button Disabled Add This Icon -->
<i class="fas fa-lock p-l_3"></i>
Mobile Menu Link: Disablled
</a>
</li>