body {margin-left: 2cm; background-color: white; font-family: sans-serif; max-width: 50em;}

h1, h2, h3, h4, h5, h6
	{font-family: futura, helvetica, sans-serif;
	 margin-left: -2cm; background-color: yellow;
	 padding-left: 1em; border: thin black solid
}

hr {margin-left: -2em}

pre { margin-left: 2em} 

a:hover {background-color: yellow; color: black; outline: thin black solid}

.new {background-color: yellow}

.callout {border: medium black dotted}