body { margin: 0px; padding: 0px; background: radial-gradient(circle at center, rgb(255, 255, 255) 0%, rgb(255, 150, 50) 20%, rgb(255, 40, 0) 35%, rgb(110, 0, 150) 55%, rgb(5, 10, 35) 100% ) } #game { margin: 3px auto 0px auto; padding: 0px; width: 1280px; height: 650px; } #canvas { width: 1280px; height: 650px; margin: 0px; background-color: rgb(0, 0, 0); }