.lock-body {
    background-color: #000000;
    background: center no-repeat fixed;
    background-size: cover;
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
}

#date_time {
    color: white;
    position: fixed;
    left: 5%;
    bottom: 10%;
    font-family: Arial;
}

#time {
    font-size: 86px;
}

#date {
    font-size: 30px;
    padding-left: 10px;
}

#login_div {
    margin-top: 20vh;
    text-align: center;
}

#login_div > img {
    width: 100px;
    height: 100px;
    box-shadow: 0 0 4px 4px #fff;
    background-color: rgba(255, 255, 255, 0.4);
    padding: 25px;
}

#user_name {
    font-size: 46px;
    font-weight: 100;
    margin: 15px 0;
    padding-top: 10px;
    color: #fff;
    font-family: Arial, Helvetica, sans-serif;
}

.winui-from-group {
    display: inline-block;
    width: 288px;
    border: 1px solid rgba(255, 255, 255, 0.70);
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}

    .winui-from-group input {
        width: 252px;
        height: 36px;
        color: #fff;
        border: none;
        background: rgba(0, 0, 0, 0.30);
        float: left;
        padding-left: 5px;
        -moz-box-sizing: border-box;
        -webkit-box-sizing: border-box;
        box-sizing: border-box;
    }

    .winui-from-group button {
        height: 36px;
        width: 36px;
        background: rgba(255, 255, 255, 0.40);
        border: none;
        float: right;
        cursor: pointer;
        color: #fff;
    }

:-moz-placeholder { /* Mozilla Firefox 4 to 18 */
    color: #fff;
    opacity: .8;
}

::-moz-placeholder { /* Mozilla Firefox 19+ */
    color: #fff;
    opacity: .8;
}

input:-ms-input-placeholder {
    color: #fff;
    opacity: .8;
}

input::-webkit-input-placeholder {
    color: #fff;
    opacity: .8;
}