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Packet Handshake Border
Two corner nodes trade packets along the border. A short burst runs from one node to the other, the far node flashes an acknowledgement and sends its own burst back.
Also known as: network packet animation, handshake border css, data transfer border, syn ack animation.
Handshakeedge-a ⇄ edge-b · 12 ms
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Customizing this snippet
- Color: set
--bdr-coloron the element or a parent. Currently previewing#3b82f6. - Base size: set
--bdr-size. Every other dimension is inem, so the whole thing scales together. Currently previewing16px. - Speed: change the duration on the
transitionoranimationshorthand. Staggered delays are relative, so they keep their rhythm. - Reduced motion: the rule at the end of the CSS turns the motion off for people who asked their OS for less of it. Keep it.