body {
    margin: 0 auto;
    width: 1200px;
    background-color: lightgreen;
}
/*PARA EL CUADRADO DE INGLES Y ESPAÑOL*/
.cuadrado a {
    text-decoration: none;
    background-color: #3498db;
    color: white;
    padding: 10px 20px;
    font-size: 16px;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}
/*PARA LOS PHP*/
.vali {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    display: inline-block;
    width: 80%;
    max-width: 600px;
    text-align: center;
    margin: 50px auto;
}

h2 {
    color: blue;
    font-size: 44px;
    text-align: center;
}

h3 {
    font-size: 24px;
    text-align: center;
}
/*FORMULARIO*/
form {
    width: 976px;
    margin-left: 2px;
    margin-right: 2px;
    padding-right: 20px;
    padding-left: 20px;
    border: 1px solid black;
    border-radius: 20px;
    background-color: lightyellow;
}