Display utilities

Display utilities are used for display and hidden things.

<!-- display: block; -->
<div class="d-block"></div>
<!-- display: inline; -->
<div class="d-inline"></div>
<!-- display: inline-block; -->
<div class="d-inline-block"></div>
<!-- display: flex; -->
<div class="d-flex"></div>
<!-- display: inline-flex; -->
<div class="d-inline-flex"></div>
<!-- display: none; -->
<div class="d-none"></div>
<div class="d-hide"></div>
<!-- visibility: visible; -->
<div class="d-visible"></div>
<!-- visibility: hidden; -->
<div class="d-invisible"></div>
<!-- hide text contents -->
<div class="text-hide"></div>
<!-- assistive text for screen reader -->
<div class="text-assistive"></div>