#pendulums_container{height:100%;width:100%;display:flex;flex-direction:row;align-items:center;justify-content:center}#pendulums_container #pendulums_container_empty__hint_text{-webkit-user-select:none;user-select:none;font-size:4vw;margin-bottom:8vw}#pendulums_container #canvas{height:90vmin}