*, *:before, *:after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,
body {
    font-family: Helvetica, Arial, sans-serif;
    font-size: 16px;
    background-color: #121416;
    color: #fff;
    text-align: center;
}

input,
button {
    border-radius: 0;
    height: 2.75rem;
    font-size: 1rem;
    padding: 0 .875rem;
    display: block;
    width: 100%;
    border: 0;
    text-align: center;
}

label {
    display: block;
    padding-bottom: .5rem;
}

button {
    font-size: 1rem;
    background-color: #eee;
}

button:hover, button:active {
    background-color: #e1e1e1;
}

.lock {
    width: 290px;
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}

.error {
    color: #f00;
    margin-bottom: 10px;
}