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Last edited Oct 3, 2022

Created on Oct 3, 2022

This example shows an SVG mask revealing a pattern of 100 horizontal stripes inside an ellipse. The code creates the mask with an ellipse element, then appends rectangles with a `mask` attribute referencing that ellipse. It uses vanilla JavaScript DOM manipulation, `document.createElementNS` for SVG namespacing, and `window.innerWidth/innerHeight` to size the scene.

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A bare minimum HTML page demonstrating use of CSS and JavaScript.

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