Habakiri is premise of the theme so I think many opportunities to create a child theme. Here I will explain how to create a child theme.

1. Creating a directory for child theme

First, creating a directory for child theme in themes directory. If the name of child theme is habakiri-child, it will such as the following placing.

/wp-content/
    /themes/
      /habakiri/
      /habakiri-child/

2. Creating the style.css

After you create a directory, create a style.css in it. You need to write the information in the theme style sheet header in style.css.The following in reference to the head of style.css, please write the style sheet header.

/*
Theme Name: habakiri-child
Theme URI: http://2inc.org
Description: Child theme of Habakiri
Author: Takashi Kitajima
Author URI: http://2inc.org
Version: 1.0.0
License: GNU General Public License
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Template: habakiri
*/

Here important to the bottom line,Template: habakiri. By writing this, this theme will be recognized as a child theme of Habakiri. When you write the style sheet header, please upload to child theme of the directory you just created.

3. Activate the child theme

Login to the administration screen of WordPress, Clicking Appearance menu. Then, habakiri-child theme displayed, please activate it.

habakiri-child does not appears or can not enabled, there is possibility of mistake in the style sheet header. Please check again.

4. Override the design of Habakiri in the original style

At this point, I think become same design as Habakiri. Let’s override the design of Habakiri at the child theme. Writing css to the style.css of the child theme. You can override the style of Habakiri by writing the CSS here. CSS write down the style sheet header. For example, it is the following.

/*
Theme Name: habakiri-child
Theme URI: http://2inc.org
Description: Child theme of Habakiri
Author: Takashi Kitajima
Author URI: http://2inc.org
Version: 1.0.0
License: GNU General Public License
License URI: license.txt
Template: habakiri
*/

body {
	font-size: 13px;
}