html {
    background: #000;
}

div {
    margin: 0 auto;
}

.captchawrapper{
    text-align: center;
    width: 75vw;
    margin-top: 25vh;
}

form {
    margin-top: 5vh;
}

input[type="submit"] {
    padding: 1em;
    width: 23vw;
    border-radius: 12px;
    border: 1px solid #000;
    font-family: system-ui;
}