Il existe de nombreux générateurs d’animation CSS ou des librairies avec des styles prêts à utiliser comme Animate.css.
Bounce.js propose de créer ou modifier une animation CSS en quelques clics.

.animation-target {
  animation: animation 1000ms linear both;
}
 
/* Generated with Bounce.js. Edit at https://goo.gl/sswYQ9 */
 
@keyframes animation { 
  0% { transform: matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  3.2% { transform: matrix3d(0.763, 0.652, 0, 0, -0.501, 0.871, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  4.3% { transform: matrix3d(0.614, 0.797, 0, 0, -0.649, 0.768, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  6.41% { transform: matrix3d(0.325, 0.953, 0, 0, -0.853, 0.534, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  8.61% { transform: matrix3d(0.083, 1.002, 0, 0, -0.961, 0.296, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  12.71% { transform: matrix3d(-0.149, 0.992, 0, 0, -1.003, -0.001, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  12.91% { transform: matrix3d(-0.154, 0.991, 0, 0, -1.003, -0.01, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  17.22% { transform: matrix3d(-0.181, 0.984, 0, 0, -0.994, -0.111, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  18.92% { transform: matrix3d(-0.163, 0.987, 0, 0, -0.994, -0.116, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  25.23% { transform: matrix3d(-0.066, 0.998, 0, 0, -0.998, -0.067, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  28.33% { transform: matrix3d(-0.028, 1, 0, 0, -0.999, -0.037, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  31.43% { transform: matrix3d(-0.004, 1, 0, 0, -1, -0.015, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  39.44% { transform: matrix3d(0.013, 1, 0, 0, -1, 0.007, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  56.46% { transform: matrix3d(0, 1, 0, 0, -1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  61.66% { transform: matrix3d(-0.001, 1, 0, 0, -1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  81.48% { transform: matrix3d(0, 1, 0, 0, -1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  83.98% { transform: matrix3d(0, 1, 0, 0, -1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  100% { transform: matrix3d(0, 1, 0, 0, -1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); } 
}

À tester sur http://bouncejs.com/