body { /* TODO: Where does this collection of font names come from? Is it standard or something? */ font-family: -apple-system,BlinkMacSystemFont,segoe ui,Helvetica,Arial,sans-serif,apple color emoji,segoe ui emoji,segoe ui symbol; } .main_section { text-align: center; } #canvas_container { display: inline-block; } #label_container { display: flex; } #label_container > p { margin-left: 20px; margin-top: 0px; margin-bottom: 0px; } canvas { border: 1px solid black; width: 640px; height: 480px; }