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An Introduction To CSS Scroll-Driven Animations: Scroll And View Progress Timelines — Smashing Magazine
with the ID “progress.” At the end of the CSS file, you’ll see it has a background color, a defined width and height, and it’s fixed at the top of the page. There’s also an animation that scales it from 0 to 1 along the x-axis — pretty standard if you’re familiar with CSS animations!…