How can html input animate if no data is enter.

Answer 1

animate how exactly?

Answer 2

https://code.sololearn.com/WVqwZ3DvkUnL/?ref=app

like this?
[edit]
made modifications
is that what you meant by animating if no data is entered?

Answer 3

The following code (using animate.css) demos shaking input if no text was entered:

https://code.sololearn.com/WEDPSs7sgJ0N/?ref=app

Answer 4

Move input box right and again left