body {
    font-family: sans-serif;
}

fieldset {
    border: 1px solid #999;
    margin-bottom: 1em;
}

.center {
    text-align: center;
}

input[type=submit] {
    background-color: green;
    color: white;
    border-radius: 10px;
}

#install {
    margin: 0;
}

#install form {
    width: 67%;
    margin: auto;
}

#install h1 {
    background-color: #333;
    border-bottom: 0.3em solid green;
    color: white;
    padding: 0.5em;
    margin: 0;
}

#install .error {
    font-size: 1.5em;
    color: red;
    font-weight: bold;
    text-align: center;
}