CSS and design changes.

_In Xanadu did Kublai Khan
A stately Pleasure-Dome decree,
Where Alph, the sacred river ran
Through caverns measureless to man
Down to a sunless sea._

_So twice five miles of fertile ground
With walls and towers was girdled ’round,
And there were gardens bright with sinuous rills,
Where blossomed many an incense-bearing tree;
And here were forests ancient as the hills,
Enfolding sunny spots of greenery._