Blinking Text

The most hated tag on the web, plus a CSS version that still works.

In 2026: The <blink> tag was removed from every browser. The CSS keyframes version below does the same thing and is what you actually want.

Where it came from: Netscape Navigator 1.0, 1994. Lou Montulli has said it came out of an evening conversation in a bar and was written the same night. Wikipedia ↗

<!-- The original (dead everywhere; Firefox was the last to blink it, until 2013) -->
<blink>UNDER CONSTRUCTION</blink>

<!-- The version that still blinks in 2026 -->
<style>
@keyframes blink90s { 0%, 49% { opacity: 1 } 50%, 100% { opacity: 0 } }
.blink { animation: blink90s 1s steps(1) infinite; }
</style>
<span class="blink"><b>NEW!</b></span>