h1 {
  visibility:hidden;
}
body {
  background-color: #ADD8E6;
  color: black;
  font-family: Arial;
  font-size: large;
}
table {
  border-top-style: solid;
  border-top-color: #333;
}
th, tr {
  border-bottom-style: solid;
  border-bottom-color: #333;
}
th {
  background-color: #E2E2E2;
}
tr {
  background-color: #F0F0F0;
}
#pie_de_pagina{
  visibility:hidden;
}