* {
   	box-sizing: border-box;
}
BODY {
    background: #888;
}

#installer {
	background: #EEE;
	font-family: "Arial", sans-serif;
	font-size: 14px;
	width: 512px;
	margin: 16px auto auto;
	border: 1px solid black;
	border-radius: 16px;
	box-shadow: 2px 2px 6px rgba(0,0,0,0.6);
}
#installer P {
	margin: 1em;
}
#installer A {
	text-decoration: none;
}
#installer A:hover {
	text-decoration: underline;
}
#installer H1, #installer H3 {
	background: #DDD;
	text-align: center;
	margin: 0;
	padding: 2px;
}
#installer H1 {
	border-radius: 16px 16px 0 0;
	border-bottom: 1px solid black;
}
#installer H3 {
	border-top: 1px solid black;
	border-bottom: 1px solid black;
}
#installer H1 + H3 {
    border-top: none;
}

#installer TABLE {
    width: 20em;
}
#installer TH {
	text-align: right;
	width: 1%;
}
#installer INPUT,
#installer SELECT {
	width: 100%;
}