Fun pen by Jakob Eriksen in which he combines Emoji and CSS Custom Properties to create an Emoji Customizer.
The reason that this works is because of the fact that emoji can have modifiers. Skin Tone and Hair, as used in the demo above, are such modifiers. Using the
"\u200d") you can glue all parts together so that they become an “Emoji ZWJ Sequence”, yielding a new Emoji.
🤓 My favorite Emoji ZWJ Sequence is the Rainbow Flag (🏳️🌈). It literally is the combination of a white flag (🏳) and a rainbow (🌈).