Child Themes

When custom CSS isn’t enough, a child theme is the right tool. Here’s a minimal one for MyWiki.

A child theme inherits everything from MyWiki and lets you override individual files. Your customizations survive parent theme updates because they live in a separate folder.

Create the folder

Inside wp-content/themes/, create a folder called mywiki-child. Inside it, two files: style.css and functions.php.

Minimal style.css

/*
Theme Name: MyWiki Child
Template: mywiki
Version: 1.0.0
*/

/* your custom styles below */

The Template: line is what makes WordPress treat this as a child of MyWiki.

Minimal functions.php

<?php
add_action( 'wp_enqueue_scripts', function() {
    wp_enqueue_style( 'mywiki-style', get_template_directory_uri() . '/style.css' );
    wp_enqueue_style( 'mywiki-child-style',
        get_stylesheet_directory_uri() . '/style.css',
        array( 'mywiki-style' )
    );
} );

Activate it

In WordPress admin, go to Appearance u2192 Themes. You’ll see MyWiki Child alongside MyWiki. Activate the child.

Override a template

To customize a template (say, single.php), copy the file from the parent theme into your child’s folder. WordPress will use your version. Don’t edit the parent u2014 it’ll be overwritten on update.