body { margin: 0; font-family: monospace; background-color: red; } canvas { display: block; width: 100; height: 100; } #b { position: absolute; top: 10px; width: 100%; text-align: center; z-index: 2; } div.hidden { visibility: hidden; } .rounded-pill-left { border-top-left-radius: 50rem !important; border-bottom-left-radius: 50rem !important; } .rounded-pill-right { border-top-right-radius: 50rem !important; border-bottom-right-radius: 50rem !important; } #bootstrap-overrides { background-color: #212529; }