body {
  margin-left: 10%; margin-right: 5%;
  font-family: Georgia, sans-serif;
  color: black;
  background-color: #ffffff }
h1 { margin-left: -8%; margin-bottom: 1em ; font-family: sans-serif;}
  h2,h3,h4,h5,h6 { margin-left: -4%; font-family: sans-serif}

div.assignment, div.announcement {
  padding: 0;
  margin-left: 6%;
  margin-top: 1em;
  margin-bottom: 0.5em;
  background: rgb(200,200,255);
  font-weight: normal; 
}
div.assignment {
  background: rgb(255,200,200);
}


div.week {
  padding: 0.5em;
  margin-left: 0%;
  margin-top: 1em;
  background: rgb(200,255,200);
  border: solid;
  border-width: thin;	
  width: 90%;
}


a:link {
  color: blue }
a:visited {
  color: purple }
address {
  margin-top: 1em;
  padding-top: 1em;
  border-top: thin dotted }