html, body {
    margin: 0;
    padding: 0;
    font-family: Roboto, "Segoe UI", Arial, sans-serif;
    font-size: 16px;
    color: white;
    user-select: none;
}

#container {
    width: 640px;
    height: 360px;
    background: url('bubbles.png?20200505_080445');
    position: relative;
    overflow: hidden;
}
#message {
    position: absolute;
    width: 350px;
    top: 10px;
    right: 10px;
    padding: 10px;
    color: #000;
    background: rgba(255,255,255,0.8);
}

.buttons {

}

.row {
    margin-top: 10px;
    padding-left: 8px;
}

button {
    width: 120px;
    background: rgba(255, 255, 255, 0.1);
    border: solid 1px white;
    border-radius: 4px;
    color: white;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
    padding: 8px;
    outline: none;
    transition-property: background, color;
    transition-duration: 200ms;
    margin-right: 4px;
    display: inline-block;

}

button:hover {
    background: rgba(255, 255, 255, 0.2);
}

button:active {
    background: rgba(255, 255, 255, 1);
    color: #081d5c;
}

#errorBar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 0 8px;
    line-height: 32px;
    background: rgba(255, 0, 0, 0.5);
    color: white;
    transition: transform 200ms;
    transform: translateY(100%);
}

#errorBar.up {
    transform: translateY(0);
}