body {
    margin: 0;
    padding: 0;
    width: 100vw;
    height: 100vh;
    background: #000;
}

#viewer {
    width: 100%;
    height: 100%;
    position: relative;
}

.overlay {
    position: absolute;
/*    border: 2px solid red;*/
    background-color: rgba(255, 0, 0, 0.3);
    cursor: pointer;
}

.overlay:hover,
.overlay.highlight {
    background-color: rgba(34, 176, 208, 0.7);
/*    border: 2px solid rgb(11, 7, 235);*/
}

.tooltip {
    display: none;
    position: absolute;
    background: white;
    padding: 8px;
    border-radius: 5px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    left: 100%;
    top: 0;
    z-index: 1000;
    pointer-events: auto;
    padding: 20px;
}