body {
  margin: auto;
  width: 90%;
  max-width: 1200px;
  color: #222;
  font-family: sans-serif;
  font-size: 100%;
}

h1, h2, h3, h4, h5 { 
  font-weight: bold;
  margin-top: 1em;
  margin-bottom: 0.5em;
}
h1 {
  font-size: 250%;
}

h2 {
  font-size: 180%;
}

h3 {
  font-size: 150%;
}

h4 {
  font-size: 120%;
  font-style: italic;
}

h5 {
  font-size: 110%;
  font-style: italic;
}

p {
  margin: 0 0 1.15em;
  line-height: 140%;
}

li{
  line-height: 140%;
}

.graph {
  width: 100%
}
.authoranddate {
  text-align: right;
  font-size: 80%
}
.twitter_small {
  width: 22px
}
.twitter_tiny {
  width: 15px
}
a:link,a:visited{color:#227;text-decoration:underlined}
a:active,a:hover{color:#f60;text-decoration:underlined}

#footer {
        padding-top: 1em;
        font-size: 70%;
        color: gray;
        text-align: center;
}
pre {
    border: 1px dotted gray;
    background-color: #ececec;
    color: #1111111;
    padding: 0.5em;
}
code {
    font-family: monospace;
}