Why Aren't My Font Awesome 5 Icons Showing in Pseudo-Elements?

Troubleshooting Font Awesome 5 Display Issues on Pseudo Elements

When attempting to change the icon content of a span using Font Awesome 5 via CSS, it is possible to encounter instances where square placeholders are displayed instead of the intended icons. This issue can occur despite the correct inclusion of the Font Awesome CDN and HTML markup.

Incorrect CSS Implementation

The provided CSS code employs the following style:

.myClass::after {
  font-family: 'Font Awesome 5 Free';
  content: '\f008';
}

However, this code fails to properly display the icon. To address this, it is crucial to add the property font-weight: 900; to the pseudo-element style.

Corrected CSS

.myClass::after {
  font-family: 'Font Awesome 5 Free';
  content: "\f008";
  font-weight: 900;
}

By adding this property, you provide the necessary weight to the icon, causing it to render correctly. The following updated code should resolve the issue:

.myClass {
  font-size: 45px;
}

.myClass::after {
  font-family: 'Font Awesome 5 Free';
  content: "\f008";
  font-weight: 900;
}

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