html {
    overflow: hidden;
}

button {
    cursor: pointer;
}

.load-image {
    margin: 10px;
    padding: 5px;
    border: 2px solid black;
    color: black;
    background-color: white;
    text-decoration: none;
}

.load-image:hover {
    color: white;
    background-color: black;
}

#menu {
    width: 50px;
    margin: 10px;
    cursor: pointer;
}

#focus {
    background-color: transparent;
    width: 40vw;
    height: 40vw;
    border-radius: 50%;
    margin: auto;
    border: 1px solid black;
    overflow: hidden;
}

#light {
    opacity: 1;
    background-color: black;
    width: 40vw;
    height: 40vw;
    border-radius: 50%;
    position: absolute;
}

.openseadragon-container {
    z-index: -1;
}

#focusKnob {
    position: relative;
    top: -200px;
    left: 5%;
}

#zoomKnob {
    position: relative;
    top: -309px;
    left: 85%;
}

#panXKnob {
    position: relative;
    top: -280px;
    left: 60%;
}

#panYKnob {
    position: relative;
    top: -380px;
    left: 70%;
}