OnomaUI

basa motion

The motion for "flop down heavily".

ばさっ1 motionOfficial

Sample

Flop down heavily

Drop a stack of items

Accelerates down from 150% above and squashes 20% on landing.

Duration
0.6s
Repeats
No
Easing
cubic-bezier(.55,0,1,.45)
Animates
Position · Scale translate scale
Show CSS
@keyframes onoma-basa {
  0% { transform: translate(0%, -150%) scale(1, 1); animation-timing-function: cubic-bezier(.55,0,1,.45); }
  62% { transform: translate(0%, 0%) scale(1.2, 0.8); animation-timing-function: ease-out; }
  80% { transform: translate(0%, 0%) scale(0.96, 1.04); }
  100% { transform: translate(0%, 0%) scale(1, 1); }
}

.onoma-basa {
  animation: onoma-basa 0.6s cubic-bezier(.55,0,1,.45) both;
}

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

Compare with similar motions

Words for the same motion