Media queries in CSS - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to apply styles only on screens smaller than 600px.

CSS

@media (max-width: [1]) {
  body {
    background-color: lightblue;
  }
}

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

A1000px

B800px

C400px

D600px

Attempts:

3 left

💡 Hint

Common Mistakes

Using a value larger than 600px will apply styles on bigger screens.

Forgetting to include units like 'px' causes the media query to fail.

The max-width media feature applies styles when the screen width is less than or equal to the specified value. Here, 600px means styles apply on screens smaller than 600 pixels wide.

2fill in blank

medium

Complete the code to apply styles only on screens wider than 768px.

CSS

@media (min-width: [1]) {
  p {
    font-size: 1.2rem;
  }
}

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

A768px

B600px

C480px

D1024px

Attempts:

3 left

💡 Hint

Common Mistakes

Using max-width instead of min-width changes the target screens.

Leaving out the units causes the media query to not work.

The min-width media feature applies styles when the screen width is greater than or equal to the specified value. Here, 768px targets tablets and larger devices.

3fill in blank

hard

Fix the error in the media query syntax to target screens between 600px and 900px.

CSS

@media (min-width: 600px) and ([1]: 900px) {
  div {
    display: flex;
  }
}

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

Amax-width

Bmin-height

Cmax-height

Dmin-width

Attempts:

3 left

💡 Hint

Common Mistakes

Using min-height or max-height instead of width features.

Repeating min-width twice causes the query to fail.

To target screens between two widths, use min-width and max-width. Here, max-width: 900px sets the upper limit.

4fill in blank

hard

Fill both blanks to create a media query that applies styles only on screens between 480px and 768px wide.

CSS

@media ([1]: 480px) and ([2]: 768px) {
  h1 {
    color: darkgreen;
  }
}

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

Amin-width

Bmax-height

Cmax-width

Dmin-height

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing height and width features.

Using the same feature for both blanks.

Use min-width for the lower limit and max-width for the upper limit to target screens between two widths.

5fill in blank

hard

Fill all three blanks to create a media query that applies styles on screens wider than 1024px, with a minimum height of 700px, and in landscape orientation.

CSS

@media ([1]: 1024px) and ([2]: 700px) and (orientation: [3]) {
  nav {
    background-color: navy;
  }
}

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

Amin-width

Bmin-height

Clandscape

Dmax-width

Attempts:

3 left

💡 Hint

Common Mistakes

Using max-width instead of min-width for the first blank.

Confusing min-height with max-height.

Using 'portrait' instead of 'landscape' for orientation.

This media query uses min-width for width, min-height for height, and orientation: landscape to target wide, tall screens in landscape mode.

Practice

1. What is the main purpose of CSS @media queries?

easy

A. To link external CSS files

B. To add animations to elements

C. To apply different styles based on device screen size or features

D. To create CSS variables

Solution

1. Step 1: Understand what @media does

   @media queries let CSS change styles depending on device features like screen width.

2. Step 2: Compare options to this purpose

   Only To apply different styles based on device screen size or features describes applying styles based on screen size or features, which matches @media usage.

3. Final Answer:

   To apply different styles based on device screen size or features -> Option C

4. Quick Check:

   Media queries = responsive styles [OK]

Hint: Media queries adapt styles to screen size or device [OK]

Common Mistakes:

• Confusing media queries with animations
• Thinking media queries link CSS files
• Mixing media queries with CSS variables

2. Which of the following is the correct syntax to apply styles only when the screen width is 600px or less?

easy

A. @media (width < 600px) { /* styles here */ }

B. @media (max-width: 600px) { /* styles here */ }

C. @media screen and (min-width: 600px) { /* styles here */ }

D. @media max-width: 600px { /* styles here */ }

Solution

1. Step 1: Recall correct media query syntax for max-width

   The correct syntax uses @media (max-width: 600px) with parentheses and colon.

2. Step 2: Check each option

   @media (max-width: 600px) { /* styles here */ } matches the correct syntax. @media screen and (min-width: 600px) { /* styles here */ } uses min-width, which is opposite. @media (width < 600px) { /* styles here */ } uses invalid syntax. @media max-width: 600px { /* styles here */ } misses parentheses.

3. Final Answer:

   @media (max-width: 600px) { /* styles here */ } -> Option B

4. Quick Check:

   Use parentheses and colon for max-width [OK]

Hint: Use parentheses and colon for conditions in @media [OK]

Common Mistakes:

• Omitting parentheses around conditions
• Using min-width instead of max-width for smaller screens
• Writing conditions without colon

3. Given this CSS, what background color will the body have on a screen 500px wide?

body { background-color: white; } @media (max-width: 600px) { body { background-color: lightblue; } }

medium

A. Lightblue

B. White

C. No background color

D. Black

Solution

1. Step 1: Understand media query condition

   The media query applies styles when screen width is 600px or less. 500px is less than 600px, so it applies.

2. Step 2: Determine which background color applies

   The media query sets background to lightblue, overriding the default white for this screen size.

3. Final Answer:

   Lightblue -> Option A

4. Quick Check:

   Screen 500px ≤ 600px uses media query color [OK]

Hint: Check if screen width meets media query condition [OK]

Common Mistakes:

• Ignoring media query and picking default style
• Confusing max-width with min-width
• Assuming no style applies if media query exists

4. Identify the error in this media query CSS:

@media max-width: 800px { p { font-size: 1.2rem; } }

medium

A. Using max-width instead of min-width

B. Missing semicolon after font-size

C. Incorrect selector inside media query

D. Missing parentheses around the condition

Solution

1. Step 1: Check media query syntax

   The condition must be inside parentheses: @media (max-width: 800px).

2. Step 2: Verify other parts

   The selector p is valid, and semicolon is present. Using max-width is correct if targeting screens 800px or less.

3. Final Answer:

   Missing parentheses around the condition -> Option D

4. Quick Check:

   Media query conditions need parentheses [OK]

Hint: Always wrap media conditions in parentheses [OK]

Common Mistakes:

• Forgetting parentheses around conditions
• Confusing max-width and min-width usage
• Missing semicolons inside CSS blocks

5. You want a paragraph's font size to be 1.5rem on screens wider than 900px, and 1rem on smaller screens. Which CSS correctly achieves this?

hard

A. p { font-size: 1.5rem; } @media (max-width: 900px) { p { font-size: 1rem; } }

B. @media (max-width: 900px) { p { font-size: 1.5rem; } } p { font-size: 1rem; }

C. @media (min-width: 900px) { p { font-size: 1rem; } } p { font-size: 1.5rem; }

D. p { font-size: 1rem; } @media (min-width: 900px) { p { font-size: 1.5rem; } }

Solution

1. Step 1: Understand the requirement

   Font size should be 1.5rem on screens wider than 900px, and 1rem on smaller screens.

2. Step 2: Analyze each option

   p { font-size: 1.5rem; } @media (max-width: 900px) { p { font-size: 1rem; } } sets default font size to 1.5rem, then uses a media query with max-width 900px to reduce font size to 1rem on smaller screens. This matches the requirement.

3. Final Answer:

   p { font-size: 1.5rem; } @media (max-width: 900px) { p { font-size: 1rem; } } -> Option A

4. Quick Check:

   Default large, smaller inside max-width media query [OK]

Hint: Set default for large, override smaller with max-width query [OK]

Common Mistakes:

• Reversing min-width and max-width logic
• Setting default smaller and overriding larger incorrectly
• Missing default style outside media query