Constraints for responsive behavior in Figma - Cell-by-Cell Formula Trace

Concept Flow

Frame (Resizable)
+-----------------------------+
|                             |
|  Element with Constraints    |
|  [Left] [Right] [Top] [Bottom]  |
|                             |
+-----------------------------+

This diagram shows a resizable frame containing an element. The element's constraints (Left, Right, Top, Bottom) determine how it moves or resizes when the frame size changes.

Formula

Original frame width = 300px Button width = 100px Constraints: Left and Right Frame width increases by 100px Calculate new Button width

We start with a frame and a Button inside it. The Button has Left and Right constraints set. We want to see how the Button's width changes when the frame width grows by 100 pixels.

Step-by-Step Trace

Step	Expression	Evaluates To	Explanation
1	Original frame width	300px	Starting width of the frame.
2	Button original width	100px	Initial width of the Button element.
3	Frame width after increase	400px	Frame width increased by 100px.
4	Button constraints	Left and Right	Button stretches horizontally with frame.
5	New Button width = Original width + Frame increase	100px + 100px = 200px	Button width increases by 100px.

The Button width doubles from 100px to 200px due to Left and Right constraints when frame width increases by 100px.

Variable Tracker

Variable	Value
Original frame width	300px
Button original width	100px
Frame width increase	100px
New frame width	400px
Button constraints	Left and Right
New Button width	200px

Key Moments

What constraints cause an element to stretch horizontally when frame width changes?

If only Left constraint is set, how does the element behave when frame width increases?

How much does the Button width increase if the frame width increases by 100px and Button has Left and Right constraints?

Sheet Trace Quiz - 1 Questions

What happens to the Button width when the frame width increases by 100px?

A Button width increases by 100px

B Button width stays the same

C Button width decreases

D Button moves but width stays same

Key Result

Elements with both Left and Right constraints stretch horizontally when the frame width changes, increasing their width by the same amount as the frame's width increase.

Transcript

We start with a frame 300 pixels wide containing a Button 100 pixels wide. The Button has Left and Right constraints set, meaning it stretches horizontally when the frame resizes. When the frame width increases by 100 pixels to 400 pixels, the Button width also increases by 100 pixels to 200 pixels. This behavior ensures the Button maintains its position relative to both left and right edges of the frame.

Practice

1. What is the main purpose of using constraints in Figma when designing frames?

easy

A. To export designs as images

B. To add colors and styles to elements

C. To control how elements move and resize inside frames

D. To create new frames automatically

Solution

1. Step 1: Understand the role of constraints

   Constraints define how elements behave when their parent frame changes size.

2. Step 2: Identify the correct purpose

   They help elements move or resize responsively inside frames.

3. Final Answer:

   To control how elements move and resize inside frames -> Option C

4. Quick Check:

   Constraints control element resizing = D [OK]

Hint: Constraints control element resizing [OK]

Common Mistakes:

• Thinking constraints add colors or styles
• Confusing constraints with exporting features
• Believing constraints create frames automatically

2. Which of the following is the correct way to set constraints for an element to stay fixed to the top and left edges of its frame in Figma?

easy

A. Set constraints to Top and Left

B. Set constraints to Bottom and Right

C. Set constraints to Center and Middle

D. Set constraints to Scale

Solution

1. Step 1: Identify fixed position constraints

   To keep an element fixed to the top-left, you must constrain it to Top and Left edges.

2. Step 2: Match constraints to behavior

   Top and Left constraints keep the element anchored to those edges when resizing.

3. Final Answer:

   Set constraints to Top and Left -> Option A

4. Quick Check:

   Top and Left constraints fix position = A [OK]

Hint: Top and Left constraints fix element position [OK]

Common Mistakes:

• Choosing Bottom and Right for top-left fixed position
• Using Center and Middle which centers element
• Using Scale which resizes element proportionally

3. If an element inside a frame has constraints set to Left and Right, what happens when the frame width increases?

medium

A. The element stays the same size and moves right

B. The element disappears

C. The element stays fixed to the left edge only

D. The element stretches horizontally to fill the new width

Solution

1. Step 1: Understand Left and Right constraints

   When both Left and Right constraints are set, the element resizes horizontally with the frame.

2. Step 2: Predict behavior on frame resize

   Increasing frame width stretches the element to maintain distance from both edges.

3. Final Answer:

   The element stretches horizontally to fill the new width -> Option D

4. Quick Check:

   Left and Right constraints cause horizontal stretch = B [OK]

Hint: Left and Right constraints stretch element width [OK]

Common Mistakes:

• Thinking element moves without resizing
• Assuming element stays fixed only to left
• Believing element disappears on resize

4. You set an element's constraints to Top and Bottom inside a frame, but when you resize the frame vertically, the element does not stretch. What is the likely mistake?

medium

A. The element's constraints are set to Left and Right instead

B. The element is set to fixed height instead of auto height

C. The frame is locked and cannot resize

D. The element is outside the frame

Solution

1. Step 1: Check constraints vs element size

   Top and Bottom constraints should stretch element vertically, but fixed height prevents resizing.

2. Step 2: Identify the cause

   If element height is fixed, it won't stretch despite constraints.

3. Final Answer:

   The element is set to fixed height instead of auto height -> Option B

4. Quick Check:

   Fixed height blocks vertical stretch = A [OK]

Hint: Ensure element height is auto for vertical stretch [OK]

Common Mistakes:

• Confusing constraints with frame lock
• Mistaking Left and Right constraints for vertical behavior
• Ignoring element position inside frame

5. You want a button inside a frame to always stay centered horizontally and fixed 20px from the bottom edge, regardless of frame resizing. Which constraints should you set?

hard

A. Center horizontally and Bottom

B. Left and Bottom

C. Right and Bottom

D. Center horizontally and Top

Solution

1. Step 1: Understand horizontal centering

   To keep the button centered horizontally, set the horizontal constraint to Center.

2. Step 2: Fix vertical position 20px from bottom

   Set vertical constraint to Bottom to keep fixed distance from bottom edge.

3. Final Answer:

   Center horizontally and Bottom -> Option A

4. Quick Check:

   Center + Bottom constraints fix horizontal center and bottom distance = C [OK]

Hint: Use Center horizontally + Bottom for fixed bottom center [OK]

Common Mistakes:

• Using Left or Right instead of Center for horizontal position
• Setting Top instead of Bottom for vertical constraint
• Not combining horizontal and vertical constraints properly