#tarjeta-contacto {
    margin-top: 100px;
    width: 35%;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 5%;
    opacity: 0;
}

body { background-color: rgb(241, 254, 255); }

#aside-right {
    background-color: rgb(230, 244, 245);
    border-radius: 5px;
    padding: 10px;
}

.seccion { margin: 30px; }

.titulo { font-size: larger; }

.parrafo { font-size: 17px; }

#titulo-pagina { margin-bottom: 20px; }

@media screen and (max-width: 1100px) {

    #tarjeta-contacto { width: 50%; }
    
}

@media screen and (max-width: 900px) {

    #tarjeta-contacto { width: 80%; }
    
}

@media screen and (max-width: 400px) {

    #tarjeta-contacto { width: 90%; }
    
}