Add viewport sizes fixture to tests.
Add viewport sizes fixture to tests.

yfdyh000/kuma,SphinxKnight/kuma,yfdyh000/kuma,escattone/kuma,Elchi3/kuma,safwanrahman/kuma,Elchi3/kuma,SphinxKnight/kuma,mozilla/kuma,escattone/kuma,jwhitlock/kuma,Elchi3/kuma,SphinxKnight/kuma,a2sheppy/kuma,Elchi3/kuma,SphinxKnight/kuma,safwanrahman/kuma,a2sheppy/kuma,mozilla/kuma,a2sheppy/kuma,SphinxKnight/kuma,mozilla/kuma,safwanrahman/kuma,yfdyh000/kuma,yfdyh000/kuma,escattone/kuma,SphinxKnight/kuma,a2sheppy/kuma,safwanrahman/kuma,Elchi3/kuma,jwhitlock/kuma,a2sheppy/kuma,jwhitlock/kuma,mozilla/kuma,yfdyh000/kuma,mozilla/kuma,yfdyh000/kuma,jwhitlock/kuma,safwanrahman/kuma,jwhitlock/kuma,safwanrahman/kuma