This notepad trick works because of HTML’s “contenteditable” attribute ... The HTML is courtesy of Mike Francis, a London-based Web designer and developer, who posted this to Twitter in ...

In the old days, programmers primarily used Notepad to write code ... correctly when opened in your preferred web browser. You can now edit the HTML file with new lines of code.

If you ever need a quick scratchpad to just write, not save what you write, but just write, you can quickly turn your web browser into an ultra-basic notepad with a single line of HTML.