.top-button {
    padding: 10px 20px;
    margin: 2px 2px 2px 0;
    font-size: 12px;
    border: none;
    border-radius: 2px;
}

#top-button-container {
    position: absolute;
    top: 10px;
    left: 10px;
    display: flex;
    gap: 5px;
    z-index: 2;
}

#low-button-container {
    position: relative;
    display: flex;
    gap: 5px;
    display: none;
    margin-top: 10px;
    z-index: 2;
}



body, html {
    display: flex;
    flex-direction: column;
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
}

body {
    display: flex;
    justify-content: center; 
    align-items: center;    
}

/* DIV */
#widget-container {/* controls positioning, scrolling etc*/
    position: relative; 
    margin-left: auto;
    margin-right: auto;
    top: 0;
    width: 80%;
    height: 80%; 
    z-index: 1;
    background-color: rgb(255, 255, 255);
}


/* CANVAS */
#webgl-canvas {/* actual drawing surface for graphics */
    display: block;
    width: 100%;
    height: 100%;
}