body {
  background-image: url("temperatura.jpg");
  background-repeat: no-repeat;
  background-position: 1.0;
}

h1 {
  font-style: italic;
  color: skyblue;
}

th {
  text-align: right;
  font-weight: bold;
  font-style: italic;
  background: maroon;
  padding: 7px 20px;
  color: black;
  border-radius: 7px 7px;
}

ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #333;
}

li {
    float: left;
}

li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

li a:hover {
      background-color: #777;
}