How deeply does Tiny CSS Projects cover overflow?

Explains hidden clipping and discrete visibility, then shows CSS and JavaScript timing; it stops short of broader overflow modes.

Overflow

As explained in Tiny CSS Projects

Overflow is content that extends beyond the bounds of its containing box or viewport.

Overflow controls whether content extending beyond a containing box remains visible. Setting `overflow: hidden` clips the excess, which is useful when a card reveals its paragraph and link through an animation. section 5.5

Use overflow deliberately when building animated interfaces:

Combine overflow with `opacity` and `transform` so partially visible content does not spoil the hidden state. section 5.5
Remember that overflow changes discretely: it is either visible or hidden, unlike an animatable width. section 11.6.3

Reveal a card’s hidden content

A card begins with `height: 5rem` and `overflow: hidden`, keeping its paragraph and link out of view. On hover or `:focus-within`, its height expands and the overflow remains visible enough for the content to animate into place.

Synchronize an expanding share menu

A share menu keeps `overflow: hidden` while its width closes or opens. JavaScript listens for `transitionstart` and `transitionend`, hiding overflow immediately during closing and making it visible after opening finishes.

How Tiny CSS Projects covers it

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Related concepts

flex-wrapaddressed by · The CSS flex-wrap property specifies whether flex items remain on one line or wrap onto multiple lines.
shrinkaddresses · Flex shrinking is the Flexbox behavior that reduces flex-item sizes and distributes insufficient space according to shrink factors and size constraints.
overflow propertyconfigured by · The CSS overflow property specifies how content exceeding an element’s box is displayed, clipped, or made scrollable.
JavaScriptused by · JavaScript is a high-level, dynamically typed, multi-paradigm programming language standardized as ECMAScript and used for web and general-purpose programming.
transitioncontrasts with · A CSS transition interpolates changes in a CSS property’s computed value over time when that value changes.

This explainer was generated by Manning's knowledge graph from the text of Tiny CSS Projects. The section links point to the parts of the book it draws on.