body {
  background-color: #006400;
}

h1 {
  color: #32cd32;
}

#Div_a {
	color: yellow;
}

#Div_b {
	background-color: #88009f;
}

.graues_Div {
	background-color: #ff6666;
}

.mit_Abstand {
	padding: 4px 12px 4px 12px;
}