body {margin: 20px 0px 20px 0px; background-color: #cccc99;}
dt {font-weight: bold; font-size: 150%; font-style: oblique;}
h1 {color: #009933;}
a {text-decoration: underline;}
a:link {color: #0000ff;}
a:visited {color: #0000ff;}
a:active {color: #0000ff;}
a:hover {color: #006699;}
.canvas {margin-left: auto; margin-right: auto; background-color: #ffffff; border: solid 1px #999999; width: 800px;}
.header-canvas {text-align: center; padding: 5px; background-color:#ccffcc; border-bottom: solid 1px #999999;}
.content-canvas {padding: 10px;}
.content {text-align: center; font-size: x-large;}
.content_index {padding: 20px 100px; text-align: left; font-size: medium;}
.content h1 {font-size: xx-large;}
.content_index h2 {text-align: center; color: #660099;}
.content_index ul {background-color: #ffcccc; font-size: larger;
		   line-height: 170%; padding: 20px 20px 20px 120px;
		   list-style-type: upper-roman;}
.content table {margin-left: auto; margin-right: auto;}
.right {text-align: right;}
.rectum {color: #009900;}
.falsum {color: #ff0000;}
.footer {text-align: center; padding: 5px;}