html, body {
    height: 100%;
    margin: 0;
}

body {
  background-image: url("/img/desert.gif");
  background-repeat: repeat;
  background-position: center center;
  background-size: cover;
  color: black;
  font-family: Verdana;
}

table {
  border-collapse: collapse;
}

th, td {
  border: 1px solid #000;
  padding: 0.4em 0.6em;
  text-align: left;
}

code, pre {
  background: #f4f4f4;
  padding: 0.5em;
  display: block;
  overflow-x: auto; 
}