I had an idea to create an animation of an envelope opening, and a piece of paper being removed and unfolded. This is the result.[codepen_embed height=”268″ theme_id=”0″ slug_hash=”ifhwq” default_tab=”result”]See the Pen Letter opening by Paul (@peiche) on CodePen.[/codepen_embed]
Disclaimer: this only works in the latest versions of Chrome and Opera.