Add a shivering effect to any button block when hovered. This plugin uses css editor and works with all template families.

Add a button block to any page. Set the size to whatever you like.

Once a button has been added, go to the Custom CSS Editor. Copy and paste the code below into the Custom CSS Editor box.

The code works for the medium button block. If you want to modify a small or large button, replace .sqs-block-button-element--medium text with either .sqs-block-button-element--small or .sqs-block-button-element--large.

DO NOT change any of the keyframes values.