html {
    background-color: #800040 ;
  }
body {
    background-color:#C0C0C0;
    font-family: trebuchet, sans-serif;
    font-size: 100%;
    width: 80%;
    height: auto;
    margin: 9%;
    padding: 2%;
  }
h1 {
    font-size: 200%;
    color: #800040;
    padding: 25px;
    text-align: center;
  }
#null, #noobject {
    font-style: italic;
    font-size: 150%;
    color: #FF0000;
    font-weight: bold;
    text-align: center;
    padding: 10px;
  }
#resultadoprop {
    font-style: italic;
    font-size: 150%;
    color: #800040;
    font-weight: bold;
    text-align: center;
    padding: 2%;
}
div {
  background-color: #B1B1B1;
  padding: 2%;
}
table {
  margin: auto;
  width: 60%;
}
th {
  color: #FFFFFF;
  background-color: #800040;
  padding: 8px;
}
td {
  background-color: #FFFFFF;
  padding: 6px;
}