This example demonstrates a minimal web page that uses JavaScript arrow functions to compute the triple of a given number. The page consists of a single HTML file with embedded CSS styling and a script block. The arrow function `tripple` takes an input, calculates its square, then multiplies that result by the original number to return the cube. The result is logged to the browser console using `console.log()`. The page displays a static "Hello Javascript!" message using standard HTML and CSS, with no external libraries or frameworks involved.