* {
    margin: 0;
    padding: 0;
}

body, html{
    height:100%;
}

#whiteboard{
    cursor:crosshair;
    position:fixed;
}

#controls {
    position: fixed;
    top: 10px;
    left: 10px;
    z-index: 10;
    display: flex;
    gap: 10px;
}

#controls button, #colorPicker {
    padding: 10px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

#controls button:hover, #colorPicker:hover {
    background-color: #ddd;
}