1. Click on 'Edit' located on the top right corner of your SharePoint page.
2. Select 'Add a new section' found at the last section of your SharePoint page.
3. Select the type of section layout that you wish to add.
4. Once done, your section should be successfully added.
5. If you wish to make any further changes to your section, you may click on 'Edit section' to do so. You are also able to select the color of the background that you want.