Break out header into include file. Implement basic header.
Revert "Break out header into include file. Implement basic header."

This reverts commit 903eb623d0e0f7e62688c3d631fe10e801f7ec1c.
Revert "Add SASS to project."

This reverts commit 73ed4241c0ebbb6aa810e64f5e8292b8c1755a30.