У вашего броузера проблема в совместимости с HTML5
Here's a really simple way to create a beautiful marbled effect on eggs using string to mask them
I used Blo Pens to apply the colour to my eggs, but it works quite well if you just dab on a thin layer of poster paint with a sponge, or flick the paint onto the egg using a stiff brush, or make a spray atomiser following these instructions: https://www.youtube.com/watch?v=Q53H8I0Kr-A