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for (var i=0; i<99; i++) { var p = document.createElement("div"); p.innerHTML = (i+1); p.style.float = "left"; var n = Math.floor(Math.sin(i/1.68)*255); var nn = 255-n; p.style.backgroundColor = "rgb("+nn+","+n+","+n+")"; p.style.color = "rgb("+nn+","+nn+","+nn+")"; p.style.padding = "5px"; p.style.borderRadius = "20px"; p.style.width = "18px"; p.style.textAlign = "center"; document.body.appendChild(p); }