Scrolling is one of the oldest interactions on the web. Long before we had pull-to-refresh or infinite-loading lists, the humble scrollbar solved the web’s original scaling problem: how can we interact with content that’s stretched beyond the available viewport?
Today, scrolling is still the most fundamental interaction on the web, and perhaps the most misunderstood. For instance, do you know the difference between the following scenarios?
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- User scrolls with two fingers on a touch pad
- User scrolls with one finger on a touch screen
- User scrolls with a mouse wheel on a physical mouse
- User clicks the sidebar and drags it up and down