body, html {
    padding: 0;
    margin: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;   
    font-family: 'Roboto', sans-serif;
}
#qr-snap {
    position: fixed;
    bottom: 0;
    left:0;
    width: 100%;
    height:5em;
    line-height: 5em;
    color:white;
    font-size: 1em;
    background: red;
    border-top:2px solid white;
    z-index: 2;
    display: none;
}
#canvas-tmp {
    width:640px; 
    height:480px; 
    position: absolute; 
    top:0; 
    right:0; 
    border: 2px dotted white; 
    z-index: 20; 
    opacity: .1;
    display: none;
}
#info {
    position: fixed;
    top:0;
    left:0;
    background-color:white;
    color: red;
    font-size: 2em;
    display: none;
}
#overlay {
    position: fixed;
    width: 100vw;
    height: 100vh;
    top: 0;
    left: 0;
    background-image: url("../images/NO-MARKER-FRAME.png");
    background-position: center;
    background-size: cover;
    text-align: center;
    color: white;
}

#overlay p {
    margin-top: 20vh;
}

.d-none {
    display: none !important;
}

#err-msg {
    width: 100%;
    height: 100%;
    text-align: center;
    padding-top:40vh;
    font-weight: bold;
}