Editing the CSS on a Glow blog is a bit more technical than most other functions. You can get some effect by just copying css from the pages on this site and adding them to the CSS editor.

To active Jetpack:

1. Log on to your blogs dashboard
2. Go to Plugins in the left hand navigation menu.
3. Click Activate under the Jetpack by WordPress.com plugin

To activate the Custom CSS module :

1. Log on to your blogs dashboard
2. Go to Jetpack -> Settings in the left hand navigation menu.
3. Activate the Custom CSS module you want to use.

To Edit the CSS,

1. Click on the Customize link in the blogs admin bar
2. Go to Appearance -> Edit CSS