Elastic Bounce

Button squishes and bounces back.

.btn-el { padding:14px 28px; background:#8b5cf6; color:white; border:none; border-radius:10px; cursor:pointer; transition:transform 0.3s cubic-bezier(0.34,1.56,0.64,1); }
.btn-el:active { transform:scale(0.9); }