body{
    font-family: Arial, Helvetica, sans-serif;
    background-color: lightgray;
}
#encabezado{
    background-color: rgb(161, 51, 51);
    color: white;
    text-align: center;
}
#pie{
    background-color: rgb(161, 51, 51);
    color: white;
    text-align: center;
}