table {
  border: 3px solid #000;
  width: 100%;
  border-collapse: collapse;
}
th {
  border: 1px solid #000;
}
td {
  border: 1px solid #000;
}
tr {
  border: 1px solid #000;
}
thead.tabla_encabezado{
  background: #1100ff;
  color: #fff;


}