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Explains the usage of responsive images to load the image based on screen resolution. It also explains how Device Pixel Ratio (DPR) works and the impact of DPR on the images having appropriate  ... Read More

Explains the Cross-Origin Resource Sharing(CORS) error message to allow cross-origin requests and shows how to resolve it for Apache and Nginx web servers.  ... Read More

Explains the ways to use lazy loading images to speed up the web page by deferring the actual image loading and save bandwidth consumed by offscreen images.  ... Read More

Explains the way to store and manipulate element specific custom data using dataset property on HTMLElement interface.  ... Read More

Explains the way to use the anchor tag with download attribute to force a file download.  ... Read More

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