div#container {
  width: 80%;
  margin: auto;
  line-height: 1.3em;
}

div.warnbox {
  background-color: #f88425;
  margin: 0 auto 2em auto;
  width: 100%;
  position: sticky;
  top: 0;
}

div.warnbox p {
  font-family: Arial, Helvetica, sans-serif;
  text-align: center;
  font-size: 1.2em;
  padding: 1em;
  color:#0c3a55;
}