Prompt

Make a text counter for a social media post. Make it a single HTML file that opens in a browser with nothing to install and no other files. Put the CSS and JavaScript inside it. Do not use image files or any external address; use emoji or letters if you need a symbol.

A big box to paste or type into. Underneath, show characters, words, sentences, and how long it takes to read out loud at a normal speaking pace.

The limit is 280 characters. Show how much is left as a bar that fills up, and turn it a warning colour as I get close and a clear colour when I go over.

Count characters the way a person would — an emoji is one character, not two.

Keep what I typed after the browser is closed and reopened.

When you are done, paste something with emoji and check the count matches what you can see.