1. Go to this page and download the library: Download justintadlock/hybrid-font library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
justintadlock / hybrid-font example snippets
if ( file_exists( get_parent_theme_file_path( 'vendor/autoload.php' ) ) ) {