Page Header and Footer

To add or remove content in the Header and the Footer, chose Structure > Block Layouts (/admin/structure/block).

You can click on the "Demonstrate block regions" to see where does regions appears in the theme.

1. Click on the "Place block" button on the region where you wish to add a new block.
2. Use "Configure" button to configure an existing block.
3. To disable or remove a block, click on the "arrow down icon" on the right side on Configure button, and choose your option.