body {
    font-family: Arial, Helvetica, sans-serif;
}

form input, form textarea {
    display: block;
    margin-top: 20px;
    padding: 10px;
    width: 300px;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    border-radius: 5px;
    border-width: 1px;
    border-style: solid;
}

form input [type=submit] {
    width: auto;
}