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A clever idea for text-based spinners in CSS. You set the “keyframes” in the content, and cycle through them by moving the line of text to the left in the actual keyframes.

<button>Loading <span class="loading"></span></button>

.loading.bar2::after {
  content: "▁A▂A▃A▄A▅A▆A▇A█";
  animation: spin8 2s steps(8) infinite alternate;
}
@keyframes spin8  { to { transform: translateY(-12.0em); } }

This is a whole repo of them by Max Beier. I’ve isolated one of them here:

See the Pen text-spinners by Chris Coyier (@chriscoyier) on CodePen.

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text-spinners is a post from CSS-Tricks