CSS Button Hover Animations: Fill Sweep, Lift, Arrow Nudge and Glow

A good CSS button hover should be short and eased, typically 150 to 300 ms with an ease-out curve, animating only transform, opacity and colour where possible. The article presents four effects: a colour fill sweep for primary actions, a small lift with shadow for cards and secondary buttons, an arrow nudge for links, and a soft glow for dark backgrounds. Each effect is paired with code, and the author recommends animating listed properties rather than using transition: all to avoid unintended changes. The piece also recommends a reduced-motion fallback and a faster way to copy a hover style. Performance notes suggest using pseudo-elements and opacity changes to keep animations smooth on large grids.