.regform {
    width: 400px;
    margin: 0 auto;
    margin-top: 50px;
    text-align: left;
    background-color: #444;
    padding: 20px;
    border-radius: 5px;
}

dl {
    margin: 0;
}

dt {
    font-weight: bold;
    font-size: 1.2em;
    margin-bottom: 5px;
    color: #fff;
}

dd {
    margin-bottom: 15px;
}

input[type="text"] {
    padding: 5px;
    width: 100%;
    box-sizing: border-box;
    background-color: #555;
    color: #fff;
    border: none;
    border-radius: 3px;
}