Blink

EDIT: Please don't do this.

The <blink> is back.

Thankfully, for you Firefox users, this won't work.

All of my webkit using readers see a blink tag, doing its blinking, which webkit does not implement. This is all thanks to an evil snippet of CSS:

@-webkit-keyframes blinkit {
    from { opacity: 1.0; }
    50% { opacity: 0.0; }
    to { opacity: 1.0; }
}
 
blink { -webkit-animation: blinkit 500 linear 0 infinite normal; }

We can use our powers for good or for evil.

Sometimes, evil is just fun!

EDIT: This might not work for everyone, even in webkit browsers. It works less reliably when I actually post it, but it is still fun!