body {
    background: #2193b0;  /* fallback for old browsers */
    background: -webkit-linear-gradient(to top, #2193b0, #6dd5ed);  /* Chrome 10-25, Safari 5.1-6 */
    background: linear-gradient(to top, #2193b0, #6dd5ed); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
    background-color: aquamarine;
}
.titulo {
    color: rgb(255, 255, 255);
    font-size: 48px;
    font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
    text-align: center;
    margin-top: 40px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.6); 
}
.cuadro {
    background: #136b81;
    color: #ffffff;
    padding: 75px;
    margin: 50px auto;
    max-width: 600px;
    border-radius: 25px 10px 25px rbga(0,0,0,0.5);
    text-align: center;
}
.cuadro img{
    width: 150px;
    margin: 15px 0;
}