html, body {
    height: 100%;
}

.main-view {
    display: none;
}

.celebration-view {
    display: none;
}

#background-container {
    z-index: 1;
}

.container {
    z-index: 2;
}

#alert-placeholder {
    z-index: 3;
}

.output-div {
    text-shadow: 0 0 3px #000000;
}

#clock-output {
    font-size: min(3.3vw, 1em);
}

.disable-select {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}