How web animations work
Connect starting states, interpolation, and timing to the right animation technique.
7 questions
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Critical thinking for an AI world
Explain how motion works, choose an animation technique, and build effects that stay usable.
Choose from 49 quizzes below. Practice the concepts you need to judge a solution, recognize faulty assumptions, and find errors in logic or code. Every answer includes an explanation and a link back to the relevant tutorial.
BasicsConnect starting states, interpolation, and timing to the right animation technique.
7 questions
Take quizRead animation declarations, connect keyframes to time, and reason about a bobbling shape.
9 questions
Take quizMake property changes animate, choose transition targets, and debug abrupt hover states.
8 questions
Take quizChoose easing curves, read stepped progress, and control individual keyframe segments.
10 questions
Take quizConnect events and style changes to CSS transitions without writing every intermediate frame.
9 questions
Take quizReuse keyframes while varying each element's duration, easing, and travel distance.
7 questions
Take quizChoose between reactive transitions and keyframe sequences using practical constraints.
7 questions
Take quizTrace position updates, wraparound, and sine motion while keeping frame timing honest.
8 questions
Take quizConfigure element animations, inspect playback options, and distinguish fill from stored styles.
10 questions
Take quizControl offsets, segment easing, multiple properties, and calculated keyframe values.
9 questions
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Going FurtherReduce rendering work, use optimization hints carefully, and measure on real devices.
8 questions
Take quizUse requestAnimationFrame to schedule, stop, and time updates without assuming a fixed frame rate.
9 questions
Take quizCheck viewport visibility, batch scroll work, and reveal content without making it inaccessible.
9 questions
Take quizLayer fixed backgrounds and map scroll position to controlled visual movement.
7 questions
Take quizSize the sprite viewport, calculate frame pitch, and use steps without sliding between frames.
8 questions
Take quizAnimate scroll position, preserve user control, and reason about easing progress.
8 questions
Take quizCompare constant steps, acceleration, deceleration, and sine/cosine oscillations.
8 questions
Take quizSupply start, change, and progress correctly, then handle endpoints, restarts, and reversals.
11 questions
Take quizVary per-element animations and chain fresh effects with the returned Animation objects.
7 questions
Take quizDistinguish inline targets from computed values and sample motion only when needed.
6 questions
Take quizDistinguish starts, iteration boundaries, completion, and cancellation before coordinating effects.
7 questions
Take quizUse transitionend to react to the right completed property without confusing multiple transitions or interruptions.
7 questions
Take quizCoordinate CSS and JavaScript motion, respect system preferences, and retain explicit user choices.
10 questions
Take quizDetach and restore animation names while preserving the stylesheet's intended effect.
5 questions
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Putting it All TogetherChoose shadow geometry, target the right property, and check rendering costs.
6 questions
Take quizCombine transforms in the right order and space orbiting items with negative delays.
9 questions
Take quizReuse two content slots with clipping, matching geometry, and boundary updates.
8 questions
Take quizUse overshoot keyframes and preserve the current position when hover direction changes.
6 questions
Take quizAlternate computed targets at completion while avoiding duplicate events and no-op loops.
6 questions
Take quizInitialize, vary, and continue per-element transitions without losing control of their state.
9 questions
Take quizBuild a two-color sliding background with hard gradient stops, sizing, and carefully chosen positions.
8 questions
Take quizMatch image geometry, clipping, and transform transitions for a two-state image reveal.
6 questions
Take quizManage reusable particle state, oscillating motion, resize updates, and motion preferences.
10 questions
Take quizProject stars around a focal point, recycle their state, and reason about timing limits.
11 questions
Take quizSeparate grid generations from canvas drawing and use probability to grow an organic-looking cluster.
10 questions
Take quizCompare iframe, SVG, and canvas approaches to a bounded, nonblocking decorative overlay.
6 questions
Take quizMove radial-gradient stops, wrap their offsets, and swap colors to sustain the striped pattern.
7 questions
Take quizCombine scale, fading, and phase offsets to make several circles feel like one continuous effect.
8 questions
Take quizUse off-center rotation, selector variants, and per-icon timing to suggest irregular motion.
9 questions
Take quizUnderstand a short transform-keyframe effect and why interrupted hover motion needs care.
6 questions
Take quizSeparate icon and circle layers, scale without reflow, and keep image links usable.
7 questions
Take quizLay text along an SVG path, fit its typography, and rotate the result with predictable timing.
7 questions
Take quizKeep card order, swipe direction, focus, and transition state consistent while navigating a stack.
11 questions
Take quizMove an off-canvas menu while keeping scrolling, event behavior, focus, and stacking under control.
10 questions
Take quizAnalyze visibility timing and layout behavior using static examples, with safer ways to draw attention.
6 questions
Take quizConvert pointer coordinates, center the moving element, and keep border, scroll, and transform assumptions explicit.
9 questions
Take quizStudy SVG color updates and random values with static examples, without creating flashing output.
5 questions
Take quizCombine clipping, scale, translation, and fade timing while accounting for transform order.
8 questions
Take quizKeep strip geometry, navigation state, transform transitions, and optional autoplay synchronized.
12 questions
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