OnomaUI

gachan motion

The motion for "slam shut with a clang".

がちゃん1 motionOfficial

Sample

Slam shut with a clang

Close hard / commit

Slams in from 180% scale and shakes 10% before settling.

Duration
0.5s
Repeats
No
Easing
ease-out
Animates
Position · Scale · Opacity translate scale opacity
Show CSS
@keyframes onoma-gachan {
  0% { transform: translate(0%, 0%) scale(1.8, 1.8); opacity: 0; animation-timing-function: cubic-bezier(.55,0,1,.45); }
  30% { transform: translate(0%, 0%) scale(1, 1); opacity: 1; }
  42% { transform: translate(-10%, 0%) scale(1, 1); opacity: 1; }
  54% { transform: translate(7%, 0%) scale(1, 1); opacity: 1; }
  66% { transform: translate(-4%, 0%) scale(1, 1); opacity: 1; }
  78% { transform: translate(1.5%, 0%) scale(1, 1); opacity: 1; }
  100% { transform: translate(0%, 0%) scale(1, 1); opacity: 1; }
}

.onoma-gachan {
  animation: onoma-gachan 0.5s ease-out both;
}

/* Reduced motion: only fade in */
@keyframes onoma-gachan-fade { from { opacity: 0; } to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .onoma-gachan { animation: onoma-gachan-fade 0.2s ease-out both; }
}

Compare with similar motions

gachanSlam shut with a clang
donBang down hard
banBang

Words for the same motion