.contenedor-encabezado{
    text-align: center;
    background: fixed no-repeat 100%;
    background-image: url("img/santaprisca.jpg");
    height: 45vh;
    background-size: cover;
    background-color: rgba(47, 72, 88, 0.249);
    background-blend-mode: darken;
}
.contenedor-encabezado h1{
    margin-top: 6rem;
}
.contenedor-mensajes{
    color: whitesmoke;
}
.section-about .card{
    box-shadow: 15px 13px 20px -10px rgba(0, 0, 0, 0.67);
    -webkit-box-shadow: 15px 13px 20px -10px rgba(0,0,0,0.67);
    -moz-box-shadow: 15px 13px 20px -10px rgba(0,0,0,0.67);
}