Why Isn't My Custom TrueType Font (.ttf) Working in CSS?

Using Custom Fonts with CSS: A Comprehensive Guide

Styling web pages with unique fonts can enhance the user experience and add a touch of personality. However, incorporating custom fonts presents its own challenges. One common issue is encountered when using a TrueType Font (.ttf) file in CSS.

Problem:

A user has included a .ttf file in their CSS code, but the desired font change is not applied to the page. The code looks like this:

<code class="css">@font-face {
    font-family: 'oswald';
    src: url('/font/oswald.regular.ttf');
}</code>

Analysis:

For browsers to display custom fonts, it is important to provide them with multiple file formats that are widely supported. Relying solely on a .ttf file may not suffice for cross-browser compatibility.

Solution:

To ensure optimal font support, the best practice is to use a combination of font formats:

<code class="css">@font-face {
    font-family: 'MyWebFont';
    src: url('webfont.eot'); /* IE9 Compat Modes */
    src: url('webfont.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */
         url('webfont.woff') format('woff'), /* Modern Browsers */
         url('webfont.ttf')  format('truetype'), /* Safari, Android, iOS */
         url('webfont.svg#svgFontName') format('svg'); /* Legacy iOS */
}</code>

This comprehensive approach provides support for various older and modern browsers. To streamline the process, users can utilize web font generators like Font Squirrel or Transfonter.

Modern browsers, such as Chrome 6 , Firefox 3.6 , and IE 9 , prioritize the .woff font format. Therefore, a more concise solution for these browsers might be:

<code class="css">@font-face {
    font-family: 'MyWebFont';
    src: url('myfont.woff') format('woff'), /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
         url('myfont.ttf') format('truetype'); /* Chrome 4+, Firefox 3.5, Opera 10+, Safari 3—5 */
}  </code>

Additional Resources:

• CSS Tricks: https://css-tricks.com/snippets/css/using-font-face/
• Can I Use: https://caniuse.com/?search=fontface

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