1. Go to your blog
2. Click Customize
3. Enable Custom HTML
4. Copy the HTML code below:
PC-users: - Press ‘ctrl + A’ and it selects all the text the frame. Then press ‘ctrl + C’to copy the code.
MAC-users: - Press ‘cmd + A’ and it selects all the text in the frame. Then press ‘cmd + C’to copy the code.
5. Delete everything and paste the code like so:

6. Go to the “Appearance” section
7. Click “Reset Defaults”
8. Edit the theme using the options in the “Appearance” tab: 

9. Click “Save changes” and that’s it!