After some experimentation, I discovered that by increasing the amount of content I have, it displays the full background image. Is there a clean and efficient way to achieve this?
<div class="jumbotron jumbotron-fluid" style="background: url('./assets/img/mhacks.jpg') no-repeat center center; margin-top: 120px;">
<div class="container text-sm-center p-t-3">
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<p class="lead">Under construction</p>
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</div>
</div>