_id: 73977ed0-cecb-11e6-9fec-f15f86beaa6c message: >- You add it to the YAML Front Matter of the post or page you want the header on. It's not globally assigned. If you want the same header on every page you could set it with [front matter defaults](https://jekyllrb.com/docs/configuration/#front-matter-defaults). name: Michael Rose email: 1ce71bc10b86565464b612093d89707e url: 'https://mademistakes.com' hidden: '' date: '2016-12-30T20:06:29.940Z'