body{
    font-family:serif;
    background-color:black;
    
}

#encabezado{
    text-align: center;
}

#contenedor{
    text-align: center;
    background-color: dodgerblue;
    border-radius: 600px;
    border-style:groove;
}

#titulo{
    background-color: firebrick;
}

button{
    background-color: darkgoldenrod;
    border-radius: 80px;
}