Revert "novo bg do header"

This reverts commit 59d6624f63cae9c738042006b66007391161d9b9.

Conflicts:
	css/style.css
	img/bg-group.jpg
Revert "novo bg do header"

This reverts commit 59d6624f63cae9c738042006b66007391161d9b9.

Conflicts:
	css/style.css
	img/bg-group.jpg
voltando o q era