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Hover

Hover is the interface state or interaction triggered when a pointing device is positioned over an element without activating it.

How 3 Manning books explain it

Tiny CSS Projects

The CSS :hover pseudo-class matches an element while a pointing device is positioned over it.

How it is used
Styles interactive states on links and buttons and reveals details on summary cards.
How deep it goes
Defines the pseudo-class and works through state styles and an animated card reveal, without examining browser selector internals.
Examples
Uses hotel summary cards, a color-changing call-to-action link, and outlined checkout buttons.
What you can do after
Build it from scratch: add visible hover feedback and a card reveal with a keyboard-focus equivalent and non-hover fallback.

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Web Design Playground, Second Edition

The CSS hover pseudo-class matches an element while a pointing device is positioned over it.

How it is used
Reveals photo captions and before-and-after image overlays when a pointer moves over them.
How deep it goes
Explains hover through opacity changes, positioned overlays, and an optional transition without broader selector theory.
Examples
Uses a photo-gallery caption overlay and portfolio before-and-after images that appear on hover.
What you can do after
Apply it via CSS rules to reveal captions or overlay images, optionally fading the change with a transition.

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CSS in Depth, Second Edition

Hover is the pointer-over state represented by the CSS :hover pseudo-class.

How it is used
Uses pointer-over states to provide visual feedback and reveal or emphasize navigation controls.
How deep it goes
Explains selector behavior, cascade order, transitions, and focus-related interaction, but stops short of browser event internals.
Examples
Demonstrates link-color feedback and a responsive navigation background that changes on hover or focus-within.
What you can do after
Apply it via CSS to style pointer-over links and coordinate interactive navigation with transitions and focus-within.

Read how CSS in Depth, Second Edition explains hover →

Related concepts

These guides are generated from the text of Manning books by Manning's knowledge graph and link to the sections they draw on. The full books are available on liveBook and at manning.com.