html {
    height: 100%;
}

body {
    margin: 0;
    padding: 0px;
    margin: 0px;
    overflow: hidden;
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center; /*centers items on the line (the x-axis by default)*/
    align-items: center; /*centers items on the cross-axis (y by default)*/
    font-size: 10pt;
    font-family: Roboto, Arial, Verdana;
    background:#333;
}


    #myVideo {
        position: fixed;
        right: 0;
        bottom: 0;
        min-width: 100%;
        min-height: 100%;
    }


    .content {
        position: fixed;
        top: 0;
        background: rgba(10, 0, 0, 0.6);
        display: flex;
        justify-content: center; /*centers items on the line (the x-axis by default)*/
        align-items: center; /*centers items on the cross-axis (y by default)*/
        width: 100%;
        height: 100%;
    }

    .flex-container {
        padding: 0;
        margin: 0;
        display: -webkit-box;
        display: -moz-box;
        display: -ms-flexbox;
        display: -webkit-flex;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }

    .flex2 {
        flex-direction: column;
        align-items: center;
        justify-content: center;
        background-color: rgb(255, 255, 255);
        border: 1px solid #c0c0c0;
        border-radius: 9px;
        padding: 20px;
        box-shadow: rgba(0,0,0,0.3) 5px 5px;
    }

    .mitem {
        margin: 10px;
        text-align: center;
    }

    .flex-icons {
        display: flex;
        width: 250px;
        justify-content: center;
    }

    .flex-button {
        justify-content: center;
    }

    .flex-icons {
        padding-top: 50px;
        width: 70px;
        display: flex;
        justify-content: space-between;
    }

    .flex-form {
        display: flex;
        flex-direction: column;
        border: 1px solid #ccc;
        background-color: #fcfcfc;
        border-radius: 5px;
        padding: 10px;
    }

    .flex-item {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .flex-field {
        margin: 5px;

    }

    .login-err {
        color: #990000;
    }

    #dis {
        color: red;
    }