How to Widen Image ?
- Open image editing software that you want to use.
- Open header image in software.
- Change size of header image.
- Now login to Blogger.com
- Go to "layout".
- Click on "Edit" on header to add image.
- Open header image in blogger.
- Click on "Save".
How to Widen blog ?
- Login to Blogger.com
- Click on "layout".
- Click on "Customize".
- Click on "Adjust widths".
- Wide your blog.
- Click on "Apply to blog".