This example displays the text "He" centered on a blank page at an extremely large font size, demonstrating the simplest possible use of HTML and inline CSS. It uses a `<style>` block to center the content and set the font size to 13em, with the text placed directly in the `<body>`. The page also includes an inline JavaScript snippet that logs the message "Hello JavaScript!" to the browser’s developer console, illustrating basic script execution without any frameworks or external libraries.