Multi-target collapse in Bootsrap - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of data-bs-target in Bootstrap's collapse component?

The data-bs-target attribute tells Bootstrap which element(s) to show or hide when the trigger is clicked. It links the button or link to the collapsible content.

beginner

How can you make one button control multiple collapsible elements in Bootstrap?

<p>You can set <code>data-bs-target</code> to a CSS selector that matches multiple elements, like a class selector (e.g., <code>.multi-collapse</code>). This way, clicking the button toggles all matched elements together.</p>

beginner

What role does the <code>.collapse</code> class play in Bootstrap's collapse feature?

<p>The <code>.collapse</code> class marks an element as collapsible. It hides the content by default and enables the toggle animation when triggered.</p>

intermediate

Why is it important to use semantic HTML elements with Bootstrap collapse components?

Using semantic elements like <button> for triggers improves accessibility. It helps keyboard users and screen readers understand and interact with the collapsible content properly.

intermediate

How does Bootstrap ensure smooth animation when collapsing multiple targets simultaneously?

<p>Bootstrap uses CSS transitions on height and JavaScript to toggle the <code>.show</code> class on all targeted elements. This triggers smooth open/close animations for each element together.</p>

Which attribute do you use to specify multiple collapse targets in Bootstrap?

A data-bs-target

B data-toggle

C href

D data-collapse

data-bs-target is used to specify one or more elements to collapse or expand.

How do you select multiple elements to collapse with one button?

A Use multiple <code>data-bs-target</code> attributes

B Use <code>id</code> attribute only

C Use a class selector in <code>data-bs-target</code>

D Use inline styles

Using a class selector like .multi-collapse in data-bs-target selects all elements with that class.

What class must collapsible elements have in Bootstrap?

A .toggle

B .collapsible

C .hidden

D .collapse

The .collapse class marks elements as collapsible.

Which HTML element is best for a collapse toggle button for accessibility?

A &lt;button&gt;

B &lt;div&gt;

C &lt;span&gt;

D &lt;a&gt; without href

<button> is semantic and accessible for toggling content.

What happens when you click a button with data-bs-target set to multiple elements?

A Nothing happens

B All targeted elements toggle open or closed together

C Only the first targeted element toggles

D Only the last targeted element toggles

All elements matched by the selector toggle their visibility simultaneously.

Explain how to create a button that toggles multiple collapsible sections at once using Bootstrap.

Think about how CSS selectors can target many elements.

Describe why accessibility matters when using collapse components and how to improve it.

Consider users who rely on keyboards or screen readers.