Custom font integration in Tailwind - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the first step to use a custom font in Tailwind CSS?

You need to import the custom font files (like .woff or .ttf) into your project and define them in your CSS using <code>@font-face</code>.

beginner

How do you add a custom font family to Tailwind's configuration?

In tailwind.config.js, extend the theme.fontFamily object by adding your custom font name and fallback fonts.

beginner

Why should you include fallback fonts when defining a custom font in Tailwind?

Fallback fonts ensure text is still readable if the custom font fails to load or is unsupported on some devices.

beginner

How do you apply your custom font to an element using Tailwind classes?

Use the class name you defined in <code>tailwind.config.js</code> for your font family, for example <code>class="font-customName"</code>.

intermediate

What is a good practice to ensure your custom font works well on different screen sizes?

Use responsive design with Tailwind’s utility classes and test font appearance on various devices to maintain readability.

Which file do you modify to add a custom font family in Tailwind CSS?

A tailwind.config.js

B index.html

C package.json

D postcss.config.js

The tailwind.config.js file is where you extend Tailwind's theme settings, including fonts.

What CSS rule is used to load a custom font file?

A @import-font

B @font-load

C @font-face

D @font-style

The @font-face rule defines custom fonts by linking font files to font-family names.

Why include fallback fonts when defining a custom font?

A To add animations

B To improve loading speed

C To reduce file size

D To ensure text displays if custom font fails

Fallback fonts ensure text remains readable if the custom font cannot load.

How do you apply a custom font named 'myFont' in Tailwind CSS classes?

A class="font-family-myFont"

B class="font-myFont"

C class="myFont"

D class="text-myFont"

Tailwind uses the prefix font- followed by the font name to apply font families.

Which unit is recommended for font sizes in Tailwind for better accessibility?

A rem

B pt

C px

D cm

Using rem units scales fonts relative to the root size, improving accessibility and responsiveness.

Explain the steps to add and use a custom font in a Tailwind CSS project.

Think about loading the font, telling Tailwind about it, then using it.

Why is it important to include fallback fonts and test your custom font on different devices?

Consider what happens if the font doesn’t load or looks different.

Practice

1. What is the main purpose of using @font-face in Tailwind CSS when integrating a custom font?

easy

A. To load and define a custom font so it can be used in your styles

B. To create animations for text using the font

C. To automatically download fonts from Google Fonts

D. To change the font size of text elements

Solution

1. Step 1: Understand the role of @font-face

   @font-face is a CSS rule that lets you load a custom font file into your website.

2. Step 2: Connect @font-face to Tailwind usage

   After loading the font with @font-face, you extend Tailwind's fontFamily to use that font in your classes.

3. Final Answer:

   To load and define a custom font so it can be used in your styles -> Option A

4. Quick Check:

   @font-face loads fonts = D [OK]

Hint: Remember: @font-face loads fonts, not styles [OK]

Common Mistakes:

• Thinking @font-face changes font size
• Confusing font loading with animations
• Assuming it downloads fonts automatically

2. Which of the following is the correct way to extend Tailwind's fontFamily in tailwind.config.js to add a custom font named 'MyFont'?

easy

A. fontFamily: { myfont: 'MyFont' }

B. fontFamily: { 'MyFont': ['custom', 'sans-serif'] }

C. fontFamily: { custom: ['MyFont', 'sans-serif'] }

D. fontFamily: { custom: 'MyFont', fallback: 'sans-serif' }

Solution

1. Step 1: Recall Tailwind fontFamily syntax

   Tailwind expects font families as arrays with font names and fallbacks, e.g., fontFamily: { key: ['FontName', 'fallback'] }.

2. Step 2: Match correct syntax

   fontFamily: { custom: ['MyFont', 'sans-serif'] } correctly uses custom as key and an array with 'MyFont' and 'sans-serif'. Others misuse keys or values.

3. Final Answer:

   fontFamily: { custom: ['MyFont', 'sans-serif'] } -> Option C

4. Quick Check:

   fontFamily uses arrays for fonts = C [OK]

Hint: Use arrays for font names and fallbacks in config [OK]

Common Mistakes:

• Using strings instead of arrays for fontFamily
• Swapping keys and values
• Missing fallback fonts

3. Given this Tailwind config extension:

fontFamily: { custom: ['MyFont', 'sans-serif'] }

and this HTML:

<p class="font-custom">Hello</p>

What font will the paragraph use if 'MyFont' is loaded correctly?

medium

A. No font, text will be invisible

B. The browser default font

C. 'sans-serif' fallback font only

D. 'MyFont' custom font

Solution

1. Step 1: Understand class usage

   The class font-custom applies the font family named 'custom' from Tailwind config.

2. Step 2: Check font loading

   If 'MyFont' is loaded correctly via @font-face, it will be used first, with 'sans-serif' as fallback.

3. Final Answer:

   'MyFont' custom font -> Option D

4. Quick Check:

   font-custom uses 'MyFont' if loaded = A [OK]

Hint: font-custom uses your custom font if loaded properly [OK]

Common Mistakes:

• Assuming fallback font is always used
• Confusing class name with default fonts
• Thinking text disappears without font

4. You added this to your CSS:

@font-face { font-family: 'MyFont'; src: url('/fonts/MyFont.woff2'); }

But your text with font-custom class still shows default font. What is the likely mistake?

medium

A. You used the wrong font file format

B. You forgot to extend fontFamily in tailwind.config.js

C. You applied the wrong Tailwind class name

D. You did not include the font file in your HTML

Solution

1. Step 1: Check font-face usage

   The font is loaded with @font-face, so the font file is available.

2. Step 2: Verify Tailwind config

   Without extending fontFamily in tailwind.config.js, the class font-custom won't apply the new font.

3. Final Answer:

   You forgot to extend fontFamily in tailwind.config.js -> Option B

4. Quick Check:

   fontFamily extension missing = B [OK]

Hint: Always extend fontFamily to use custom fonts in Tailwind [OK]

Common Mistakes:

• Not extending fontFamily in config
• Using wrong class names
• Forgetting to rebuild Tailwind after config change

5. You want to use two custom fonts, 'MyFontBold' and 'MyFontLight', in Tailwind. How should you configure tailwind.config.js and your CSS to use font-boldcustom and font-lightcustom classes for them?

hard

A. Define two @font-face rules with different font-family names and extend fontFamily with keys 'boldcustom' and 'lightcustom' pointing to those fonts

B. Use one @font-face with both fonts and extend fontFamily with a single key

C. Only extend fontFamily once and use CSS font-weight to switch fonts

D. Add both fonts in one @font-face and use font-custom class for both

Solution

1. Step 1: Define separate @font-face rules

   Each font variant needs its own @font-face with unique font-family names like 'MyFontBold' and 'MyFontLight'.

2. Step 2: Extend Tailwind's fontFamily

   In tailwind.config.js, add keys 'boldcustom' and 'lightcustom' pointing to these font-family names so you can use font-boldcustom and font-lightcustom classes.

3. Final Answer:

   Define two @font-face rules and extend fontFamily with 'boldcustom' and 'lightcustom' -> Option A

4. Quick Check:

   Separate font-faces + fontFamily keys = A [OK]

Hint: Use separate font-family names and keys for each font variant [OK]

Common Mistakes:

• Trying to combine fonts in one @font-face
• Using CSS font-weight instead of separate font-family
• Not extending fontFamily for each font variant