Changed Sass styles guide

Changes made along with this [blog post](https://draftin.com/documents/274930?token=cNSXVZDgcFC1j7ZB3V4_p9GI5YGl8iwL_l3b9-8tanT73xEldd92_OsW-oaqnBBj4WIasIcLNCRuvDkn7BRekqc)