body
{
	margin: 0;
	padding: 0;
	background: rgb(30,30,25);
	color: white;
	font-family: arial;
	width: 100%;
}
#ruthExp
{
	border: 1px solid silver;
	background: black;
	width: 60%;
	margin-left: 20%;
}
header
{
	text-align: center;
	font-style: italic;
	text-decoration: underline;
}


#demarreur
{
	display: block;
	width: max(10%,200px);
	margin: 1% auto auto auto;
	padding: 1%;
	background: grey;
	font-size: 150%;
	border: 3px outset darkgrey;
	transition-duration: 1s;
}

#demarreur:hover
{
	background: orange;
	color: white;
	text-shadow: 0px 0px 3px white;
}

#demarreur:active
{
		border: 3px inset grey;
}

#legendeAtomeOr, #legende img
{
	display: inline;
	vertical-align: middle;
	text-align: center;
}

#legende 
{
	text-align: center;
}
footer 
{
	margin-top: 2%;
	text-align: center;
}