Duration and timing curves in Tailwind - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does the <code>duration-500</code> class in Tailwind CSS do?

It sets the transition duration to 500 milliseconds, controlling how long the animation or transition takes to complete.

beginner

Explain the purpose of timing curves in CSS transitions.

Timing curves control the speed of a transition over time, making animations feel smooth and natural by adjusting acceleration and deceleration.

beginner

Which Tailwind class applies an 'ease-in-out' timing curve?

The class ease-in-out applies a timing curve that starts slow, speeds up in the middle, and slows down at the end.

intermediate

How do you combine duration and timing curve classes in Tailwind CSS?

You add both classes to an element, for example: duration-700 ease-linear sets a 700ms duration with a linear timing curve.

beginner

What visual effect does the ease-linear timing curve create?

It creates a transition that moves at a constant speed from start to finish, without speeding up or slowing down.

Which Tailwind class sets a transition duration of 300 milliseconds?

A ease-in

B duration-500

C delay-300

D duration-300

duration-300 sets the transition duration to 300ms. duration-500 is 500ms, ease-in is a timing curve, and delay-300 adds a delay before the transition starts.

What does the ease-out timing curve do in a transition?

A Starts fast and slows down

B Starts slow and speeds up

C Speeds up then slows down

D Moves at a constant speed

ease-out starts fast and slows down at the end of the transition.

How would you make a transition last 1 second with a smooth start and end using Tailwind?

A duration-1000 ease-in-out

B duration-100 ease-linear

C duration-500 ease-in

D duration-700 ease-out

duration-1000 sets 1 second duration, and ease-in-out makes the transition start and end smoothly.

Which class would create a transition that moves at a constant speed?

A ease-out

B ease-linear

C ease-in

D ease-in-out

ease-linear makes the transition move at a constant speed without acceleration or deceleration.

If you want a very fast transition, which duration class is best?

A duration-1000

B duration-700

C duration-150

D duration-500

duration-150 is the shortest duration among these, making the transition very fast.

Describe how duration and timing curves work together to create smooth animations in Tailwind CSS.

Think about how long something takes and how its speed changes over time.

List common Tailwind classes for duration and timing curves and explain their effects.

Focus on the numbers for duration and the names for timing curves.

Practice

1. What does the Tailwind class duration-700 control in an animation?

easy

A. The color of the animated element

B. The size of the animated element

C. The delay before the animation starts

D. The length of time the animation takes to complete

Solution

1. Step 1: Understand the purpose of duration classes

   In Tailwind, duration classes like duration-700 set how long an animation runs in milliseconds.

2. Step 2: Identify what duration-700 means

   The number 700 means 700 milliseconds, so the animation takes 0.7 seconds to finish.

3. Final Answer:

   The length of time the animation takes to complete -> Option D

4. Quick Check:

   Duration controls animation time = B [OK]

Hint: Duration classes set animation time in ms, like duration-700 means 700ms [OK]

Common Mistakes:

• Confusing duration with delay
• Thinking duration changes color or size
• Mixing duration with timing curve

2. Which Tailwind class correctly applies an ease-in-out timing curve to an animation?

easy

A. ease-in-out

B. duration-in-out

C. timing-ease-in-out

D. animate-ease-in-out

Solution

1. Step 1: Recall Tailwind timing curve class names

   Tailwind uses simple class names like ease-in, ease-out, and ease-in-out to set timing curves.

2. Step 2: Identify the correct class for ease-in-out

   The correct class is exactly ease-in-out. Other options are invalid or do not exist.

3. Final Answer:

   ease-in-out -> Option A

4. Quick Check:

   Timing curve class = ease-in-out = D [OK]

Hint: Timing curves use ease-in, ease-out, ease-in-out exactly [OK]

Common Mistakes:

• Adding extra prefixes like duration- or timing-
• Using animate- prefix incorrectly
• Confusing timing curve with duration

3. What will be the total animation time for an element with classes duration-300 ease-linear?

medium

A. 500 milliseconds with an ease-in speed

B. 300 milliseconds with a constant speed

C. 300 seconds with a slow start

D. No animation because ease-linear is invalid

Solution

1. Step 1: Understand duration-300 meaning

   The class duration-300 sets the animation length to 300 milliseconds (0.3 seconds).

2. Step 2: Understand ease-linear timing curve

   ease-linear means the animation speed is constant from start to end, no acceleration or slowing.

3. Final Answer:

   300 milliseconds with a constant speed -> Option B

4. Quick Check:

   duration-300 + ease-linear = 300ms constant speed [OK]

Hint: Duration sets time, ease-linear means steady speed [OK]

Common Mistakes:

• Confusing milliseconds with seconds
• Thinking ease-linear means slow start
• Believing ease-linear is invalid

4. You wrote class="duration-500 ease-inout" but the animation speed is not smooth. What is the error?

medium

A. The class should be ease-in-out with dashes

B. Duration must be in seconds, not milliseconds

C. You need to add animate- prefix to the class

D. The class ease-inout is correct and the problem is elsewhere

Solution

1. Step 1: Check the timing curve class spelling

   The correct Tailwind class for this timing curve is ease-in-out with dashes between words.

2. Step 2: Understand why ease-inout fails

   Without dashes, Tailwind does not recognize the class, so no timing curve is applied, causing animation issues.

3. Final Answer:

   The class should be ease-in-out with dashes -> Option A

4. Quick Check:

   Correct timing curve class = ease-in-out [OK]

Hint: Timing curve classes need exact dashes, like ease-in-out [OK]

Common Mistakes:

• Missing dashes in timing curve class
• Using wrong units for duration
• Adding unnecessary prefixes

5. You want an animation that starts slowly, speeds up, then slows down again over 1 second. Which Tailwind classes should you use?

hard

A. duration-1000 ease-in

B. duration-100 ease-linear

C. duration-1000 ease-in-out

D. duration-500 ease-out

Solution

1. Step 1: Identify the needed animation duration

   The animation should last 1 second, so duration-1000 (1000 milliseconds) is correct.

2. Step 2: Choose the timing curve for slow start and end

   ease-in-out timing curve starts slow, speeds up in the middle, then slows down at the end, matching the requirement.

3. Final Answer:

   duration-1000 ease-in-out -> Option C

4. Quick Check:

   1s duration + ease-in-out curve = A [OK]

Hint: Use duration-1000 with ease-in-out for slow start and end [OK]

Common Mistakes:

• Choosing too short duration
• Using ease-linear which is constant speed
• Using only ease-in or ease-out which don't slow both ends