How can I center text vertically within a division with a height of 100vh? Here's what I've tried:
.about-header {
height: 100vh;
background: #000;
}
.about-header p {
font-size: 5em;
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<div class="container-fluid about-header text-center">
<div class="row ">
<div class="col-md-12">
<p>Lorem Ipsum</p>
</div>
</div>
</div>