Posts tagged "images"

Aspect ratios determine how images and videos fill their containers. Getting them wrong causes layout shift and distorted media. CSS now has native solutions that make this straightforward.

Embedding images as Base64 data URIs eliminates an HTTP request but increases file size by 33% and breaks caching. Here is when the trade-off actually makes sense.

When you resize an image, your software has to invent new pixel values. The algorithm it uses determines whether the result is crisp, blurry, or filled with jagged artifacts.

Every photo your phone takes embeds GPS coordinates, device model, lens serial number, and timestamp — all invisible but readable by anyone who downloads the file. Here is what EXIF data contains and how to remove it.

CSS sprites were the standard performance technique for reducing icon HTTP requests in the HTTP/1.1 era. With HTTP/2 and SVG, the calculus has changed — but understanding sprites is still valuable.

When you drag a JPEG quality slider from 100 to 80, what actually changes in the file? Understanding the compression algorithm helps you make smarter trade-offs between file size and quality.

WebP typically achieves 25-35% smaller file sizes than JPEG at equivalent quality, and browser support is now essentially universal. The case for switching has never been stronger.

Choosing the wrong image format can double your page weight or break compatibility in older browsers. This guide cuts through the noise with practical guidance for each format.