Does your example not work in CodePen? The CodePen environment is a little different than the web page environment that contain the CodePen. Sometimes, when you follow the instructions to add the ...

If your iPhone lacks a home button or your actual home button is not working, you can add a virtual one using AssistiveTouch. Here's how.

AssistiveTouch is an accessibility feature that lets you create a virtual home button, and then set what a tap, double-tap, or long-press does. On your device, go to Settings > Accessibility ...