Why dark mode improves user experience in Tailwind - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to apply a dark background using Tailwind CSS.

Tailwind

<div class="[1] min-h-screen flex items-center justify-center">
  <p class="text-white">Dark mode background</p>
</div>

Drag options to blanks, or click blank then click option'

Abg-blue-500

Bbg-yellow-300

Cbg-white

Dbg-gray-900

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing a light background class like bg-white.

Using a bright color that is not suitable for dark mode.

The class bg-gray-900 sets a very dark background color, suitable for dark mode.

2fill in blank

medium

Complete the code to make text color adapt to dark mode using Tailwind CSS.

Tailwind

<p class="[1]">This text changes color in dark mode.</p>

Drag options to blanks, or click blank then click option'

Atext-black dark:text-white

Btext-white dark:text-black

Ctext-gray-500

Dtext-yellow-400

Attempts:

3 left

💡 Hint

Common Mistakes

Reversing the colors so text is white on light background.

Not using the dark: prefix.

The class text-black dark:text-white sets black text normally and white text in dark mode for better readability.

3fill in blank

hard

Fix the error in the dark mode toggle button code by completing the missing class.

Tailwind

<button class="px-4 py-2 rounded [1] transition-colors duration-300">
  Toggle Dark Mode
</button>

Drag options to blanks, or click blank then click option'

Abg-gray-200 dark:bg-gray-800

Bbg-red-500

Ctext-blue-700

Dborder-2 border-black

Attempts:

3 left

💡 Hint

Common Mistakes

Using a fixed color that does not change with dark mode.

Forgetting to add transition classes for smooth color change.

The class bg-gray-200 dark:bg-gray-800 changes the button background color based on light or dark mode, improving user experience.

4fill in blank

hard

Fill both blanks to create a responsive card with dark mode support.

Tailwind

<div class="max-w-sm rounded overflow-hidden shadow-lg [1] p-6">
  <h2 class="font-bold text-xl mb-2 [2]">Dark Mode Card</h2>
  <p>This card adapts to dark mode and screen size.</p>
</div>

Drag options to blanks, or click blank then click option'

Abg-white dark:bg-gray-900

Btext-gray-900 dark:text-white

Ctext-white

Dbg-gray-300

Attempts:

3 left

💡 Hint

Common Mistakes

Using fixed colors that don't adapt to dark mode.

Not using dark mode classes for text.

The card background uses bg-white dark:bg-gray-900 to switch colors. The heading uses text-gray-900 dark:text-white for readability in both modes.

5fill in blank

hard

Fill all three blanks to create a dark mode toggle switch with accessible labels.

Tailwind

<label for="dark-toggle" class="flex items-center cursor-pointer [1]">
  <div class="relative">
    <input type="checkbox" id="dark-toggle" class="sr-only" />
    <div class="w-10 h-4 [2] rounded-full shadow-inner"></div>
    <div class="dot absolute w-6 h-6 [3] rounded-full shadow -left-1 -top-1 transition"></div>
  </div>
  <span class="ml-3 text-gray-700 dark:text-gray-300">Dark Mode</span>
</label>

Drag options to blanks, or click blank then click option'

Abg-gray-300 dark:bg-gray-600

Bbg-green-400

Cbg-white

Dbg-black

Attempts:

3 left

💡 Hint

Common Mistakes

Not using sr-only for accessible hidden input.

Using colors that don't contrast well in dark mode.

The label background uses bg-gray-300 dark:bg-gray-600 to adapt to dark mode. The toggle track uses bg-green-400 for the active color, and the dot uses bg-white for contrast and visibility.