body {
    padding: 3%;
    background-color: black;
    background: url("https://i.xesu.moe/stein/steindep.jpg") no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;

    font-weight: bolder;
    font-family: verdana;
    color: white;

    font-size: 2em;
    text-shadow: -2px 0 black, 0 2px black, 2px 0 black, 0 -2px black;

}

button {
    padding: 30px 90px;
    font-size: 2em;
    font-weight: bolder;
}

#bloque {
    position: fixed;
    text-align: center;
    left: 30%;
    top: 25%;
}

#udeh {
    display: none;
}