pre {
	overflow:auto;
}
.style {
	background-color: #F2E6EF;
	border: 1px solid #D2A4C1;
}
.html {
	background-color: #E6EFF2;
	border: 1px solid #A4C1D2;
}
.style, .html {
	width:500px;
	padding:.5em;
}
.note {
	color:gray;
}
dfn {
	color:#C00;
}