Use d-tt-uppercase to uppercase an element's text.
<p class="d-tt-uppercase">The quick brown fox jumps over the lazy dog.</p>
Use d-tt-lowercase to lowercase an element's text.
<p class="d-tt-lowercase">The quick brown fox jumps over the lazy dog.</p>
Use d-tt-capitalize to capitalize an element's text.
<p class="d-tt-capitalize">The quick brown fox jumps over the lazy dog.</p>