This example demonstrates a minimal HTML page that combines CSS and JavaScript to display a styled heading and trigger an alert. The page uses an external stylesheet, `info.css`, to render the heading text in white on a black background, while the external script `java.js` calls the browser’s `alert()` function to show the message “information desing” on load. The embedded script logs “Hello JavaScript!” to the console. The code references no visualization libraries, relying solely on basic DOM elements and standard web APIs.