a:link, a:hover, a:active, a:visited{color: #000;} html, body{margin: 0; padding: 0; height: 100%; width: 100%;} canvas{margin: 0; padding: 0; border: none; display: block;} button:hover{cursor: pointer;} #canvasHolder{ position: absolute; width: 80%; height: 100%; } #interface{ position: absolute; left: 80%; width: 20%; height: 100%; background-color: darkkhaki; font-size: 20px; } fieldset:nth-child(1){ margin: 30px; border: 3px solid #000; } fieldset input[type="button"]{ margin-top: 10%; width: 100%; height: 30px; } legend{ font-size: 25px; } label::after{ content: ""; display: block; }