WordPress Child Theme Example

functions.php

<?php
function mytheme_scripts_styles() {
    // Enqueue the parent theme stylesheet
    wp_enqueue_style( 'parent-style', trailingslashit( get_template_directory_uri() ) . 'style.css' );

    // Ensure the default WordPress stylesheet is enqueued after the parent stylesheet
    wp_enqueue_style( 'style', get_stylesheet_uri(), array( 'parent-style' ) );
}
add_action( 'wp_enqueue_scripts', 'mytheme_scripts_styles' );

style.css

/*
Theme Name:   Your Child Theme Name
Theme URI:    http://example.com/my-awesome-child-theme
Description:  A description for your Child Theme
Author:       Your name
Author URI:   http://example.com
Template:     parent-theme-folder-name
Version:      1.0.0
*/

Pro Tip:
When adding the above code to your style.css file, don't forget to update the Template name.
Although not technically needed for it to work, it’s a good idea to also create a .png image (screenshot.png) to display a screenshot on the Themes page in the Dashboard. The image should be 1200 x 900px.