body, html {
    height: 100%;
    margin: 0;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    background-image: radial-gradient(circle, #a8ffe1, #a9ffe9, #acfef0, #b0fdf6, #b6fcfb, #b8f7ff, #bef2ff, #c4edff, #cfe2ff, #e5d5f9, #f9c9e2, #ffc2c2);

}
.formulario {
    background-color: white;
    padding: 20px;
    max-width: 400px;
    width: 100%;
    border-radius: 20px;
    box-shadow: 10px 15px 23px #888888;

}

.tituloform {
    color: black;
}
.btn-centralizado {
    display: block;
    margin: auto;
    border-radius: 20px;
    text-align: center;
    width: 100px;
}