:root{--hue: 100;--bg: hsl(var(--hue), 50%, 90%);--fg: hsl(var(--hue), 20%, 20%)}body{font-family:Overpass Mono,monospace;color:var(--fg);background-color:var(--bg);touch-action:none;overflow:hidden;user-select:none;-webkit-user-select:none;overscroll-behavior:none;height:100vh;width:100vw;display:flex;flex-direction:column}section{flex-grow:1;display:flex;align-items:center;justify-content:center}header{margin:1em}#thing{border:3px solid var(--fg);width:20vw;height:20vw;background-color:hsl(var(--hue),0%,50%)}