body {font-family: sans-serif;
      color: black; background-color: white; font-size: 50%}
h1, h2 {font-family: sans-serif; page-break-before: always;
    background-color: yellow; padding-left: 1em }
p {font-family: sans-serif }
a {text-decoration: none}
a:visited {color: #b7f}
pre {font-weight: bold; margin-left: 10%; margin-right: 5%}
p {margin-left: 5%; margin-right: 5%}
ul, ol {margin-left: 10%; margin-right: 5%}
div {border: thin black solid; margin: 3em 1%;
     width: 20%; padding-bottom:1em; float: left; height: 40em}
img {width: 100%; height: auto}

@media projection {
	body {font-size: 20pt;}
	div {border-style: none; margin: 0; width: 100%}
}

@media print {
	body {font-size: 40%}
	div {float: left}
}