The HTML5 meter Element | CSS-Tricks
This article explains the HTML5 meter element—a semantic gauge for displaying scalar measurements within a known range, such as disk usage or test scores—and demonstrates how to style it across browsers using vendor-specific pseudo-classes like `-webkit-meter-optimum-value` in Chrome/Safari and `::-moz-meter-bar` in Firefox. It provides practical examples of creating an OS X-style disk usage meter with multi-colored gradient fills and offers fallback solutions for older browsers, including both JavaScript polyfills and pure HTML/CSS alternatives that degrade gracefully in unsupported browsers like Internet Explorer.