body {	margin: 0px; background-color: lightgreen;}
.all {	border: 1px solid rgb(153, 153, 153); width: 840px; margin-right: auto; margin-left: auto; background-color: rgb(255, 255, 255);}
.menu {	padding: 5px; text-align: center; font-size: 1em; background-color: rgb(51, 51, 51);}
h1 {	color: blue; font-size: 1.8em;line-height: 0.5em;}
h2 {	color: red; font-size: 1.1em;line-height: 0.0em;}
h3 {	color: green; font-size: 1.1em;line-height: 1.5em;}
h4 {	color: green; line-height: 1.4em;}
p {	color:black; line-height: 1.4em;}
a:link {	color:blue;}
a:visited {	color: purple;}
a:hover {	color: green; background-color: yellow;}
address {	text-align: center; clear: both; font-style: normal;}