Use CSS3 clip-path polygon() to animate and morph between two shapes.
codepen: https://codepen.io/ui-code-tv/pen/XWeXgMx
clip-path shape generator: https://bennettfeely.com/clippy/
Previous animation videos :
Clip-path animation: https://www.youtube.com/watch?v=w-H9J6opwY4&t=50s
Transition animation: https://www.youtube.com/watch?v=YJz8S...
Blob animation: https://www.youtube.com/watch?v=A1GeA...