Matt Mullenweg said: "Child themes are the only way you should build your WordPress site on top of a framework."
Why are child themes the only way to build? If your theme updates and you don't use a child theme, all your changes will be lost. And if you don't update, you're site may well be insecure.
So, child themes are great. But the sad fact is almost no-one uses them.
A theme developer found a grand total of two (!) of his customers were using child themes.
The most likely reason is that child themes are difficult to create and then can be confusing to site builders.
The One-Click Child Theme plugin is a great solution to this problem.
Let's see how the plugin works. We're going to make a child theme of the default Twenty Eleven WordPress theme.
Step 1: Installation
- Go to Plugins > Add New.
- Search for one-click child.
- Click Install.
- Activate the plugin.
Step 2: Create a Child Theme
- On the Dashboard menu go to Appearance > Child Theme.
- You can name the child theme anything. You can use spaces in the name or other characters.
- The description is optional.
- Your username will be filled in for you.
- Click Create Child.
When I tired it, the child theme was created and the theme was automatically switched. My 2011 theme was still intact.
Step 3: Check the Child Theme
The plugin creates the folder for the child theme, and the basic CSS files automatically for you. You can check for these files in your /wp-content/themes/ folder.
It's possible to create a grand-child theme, if you click Child Theme again. However, I don't recommend this. Reading the author's blog,I saw that he hasn't got grand-child themes completely worked out yet.
If you want to get started with learning how to change the style using a child theme read this tutorial http://www.ostraining.com/blog/wordpress/child-theme/ and you can learn how to change the type style on the header text and make other basic changes.
This article: http://www.ostraining.com/blog/wordpress/firebug-wordpress-css/ will get you started using Firebug or Firebug lite to track down CSS in your stylesheets.