Bootstrap class: .text-*-center

<p class="text-center">Center aligned text on all viewport sizes.</p>
<p class="text-sm-center">Center aligned text on viewports sized SM (small) or wider.</p>
<p class="text-md-center">Center aligned text on viewports sized MD (medium) or wider.</p>
<p class="text-lg-center">Center aligned text on viewports sized LG (large) or wider.</p>
<p class="text-xl-center">Center aligned text on viewports sized XL (extra-large) or wider.</p>

Preview

Center aligned text on all viewport sizes.

Center aligned text on viewports sized SM (small) or wider.

Center aligned text on viewports sized MD (medium) or wider.

Center aligned text on viewports sized LG (large) or wider.

Center aligned text on viewports sized XL (extra-large) or wider.

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