I'm struggling to align the elements (#header-text-bottom and anchor) to the bottom using bootstrap 4. I tried applying the vertical-align class to both elements but it doesn't seem to work.
<header>
<nav>
<!-- TODO - build menu -->
</nav>
<div id="header-top-text">
<div class="container">
<h3>The East side 47<br>Multifamily Portfolio</h3>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Soluta iure nobis nulla illum aut ut quae minima dicta, impedit dolorem, delectus quis fuga nemo reprehenderit quod est. Perspiciatis, id, tempora?</p>
</div>
</div>
<div id="header-bottom-text" class="align-bottom">
<div class="container">
<div class="row">
<div class="col-sm-3">
<h5>$NNN</h5>
<p>Random Text</p>
</div>
<div class="col-sm-3">
<h5>$NNN</h5>
<p>Random Text</p>
</div>
<div class="col-sm-3">
<h5>$NNN</h5>
<p>Random Text</p>
</div>
<div class="col-sm-3">
<h5>$NNN</h5>
<p>Random Text</p>
</div>
</div>
</div>
</div>
<div class="container align-bottom">
<a href="#case-study" id="arow-white" class="btn secondaty-outline btn-sm" role="button">
<i class="fa fa-angle-down" aria-hidden="true"></i>
</a>
</div>
</header>