This example demonstrates a minimal introductory HTML page that presents static text content, including a heading that identifies the author and a simple "Hello HTML" message. It also includes JavaScript that logs "Hello JavaScript!" to the browser’s developer console. The code uses plain HTML elements, a linked CSS stylesheet (`info.css`) that styles the heading with white text on a black background, and an inline JavaScript block with a `switch` statement that maps the current day of the week to a Korean string (though it is not displayed on the page). A second JavaScript file (`java.js`) is referenced conceptually, showing variable type reassignment using `typeof`. The example serves as a basic demonstratation of how CSS and JavaScript integrate with HTML.