html {
  max-width: 70ch;
  padding-top: 0;
  margin: auto;
  line-height: 1.5;
  font-size: 1.2em;
  font-family: sans-serif;
  animation: fadein 1s;
}

@keyframes fadein {
    from { opacity: 0; }
    to   { opacity: 1; }
}

body {
  background-color: #dfdfdf;
  padding-top: 0;
  margin-top: 0;
  padding-bottom: 3em;
}

#menu {
  margin-bottom: 3em;
  background-color: #4d6996;
  width: 100%;
  padding: 1em;
  margin-top: 0;
}

#menu a {
  padding: 0.5em;
  font-weight: bold;
  background-color: #cdcdcd;
  border-radius: 5px;
  text-decoration: none;
  color: black;
}

ul {
  line-height: 3em;
}

#footer {
  text-align: center;
  background-color: #cdcdcd;
  position: fixed;
  padding: 0.5em;
  bottom: 0;
  left: 0;
  right: 0;
  font-size: 0.7em;
}