bootstrap 4 lis code example

Example 1: bootstrap ul no style

<ul class="list-unstyled">
   <li>...</li>
</ul>

Example 2: list hover bootstrap

...
<div class="collapse navbar-collapse" data-hover="dropdown" data-animations="fadeInDown fadeInRight fadeInUp fadeInLeft>
    <ul class="nav navbar-nav">
    ...
    </ul>
</div>
...
or
...
<div class="collapse navbar-collapse">
    <ul class="nav navbar-nav" data-hover="dropdown" data-animations="fadeInDown fadeInRight fadeInUp fadeInLeft>
    ...
    </ul>
</div>
...