.floatleft {float: left; }
.floatright {float: right; }
.halfwidth {width: 49%; }
.clearboth {clear: both; }

body {
  background: #fc9;
  font-size: smaller;
  }
div,h1 {background: #fda; }
hr {
  margin: 3em 0 1em 0;
  border-top: 4px solid black;
}