This example demonstrates how CSS and inline styles interact to control the appearance of an HTML heading, using the Atkinson Hyperlegible font. A blue `h1` element overrides a green CSS rule and a purple text class, while a hover state increases the font size and adds a red fill with reduced opacity. The page renders a largely empty SVG element, with magenta-colored bars and text styled through CSS classes. The code relies on standard HTML5, CSS styling, and the Google Fonts API to load the typeface, with React not visibly used in this minimal static page.