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argentina
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argentina
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<!DOCTYPE html>
<html>
<head>
<title>argentina.org</title>
<style type="text/css">
html, body {
position: fixed;
left: 0;
right: 0;
top: 0;
bottom: 0;
margin: 0;
overflow: hidden;
}
#color-area {
width: 100%;
height: 100%;
margin: 0;
}
</style>
<script type="text/javascript">
let changing = true;
window.onload = function() {
let colorArea = document.getElementById("color-area");
let setColor = function(color) {
colorArea.style.backgroundColor = "hsl(" + color.h + ", " + color.s + "%, " + color.l + "%)";
};
colorArea.addEventListener("mousedown", function() {
changing = !changing;
});
color = {
h: 0,
s: 100,
l: 0
};
colorArea.addEventListener("mousemove", function(event) {
if (changing) {
// Change hue / luminance
color.h = event.clientX / 3;
color.l = parseInt(100 * event.clientY / colorArea.clientHeight);
setColor(color);
}
});
colorArea.addEventListener("wheel", function(event) {
if (changing) {
// Change saturation
color.s = Math.min(Math.max(color.s - event.deltaY / 10, 0), 100);
setColor(color);
}
});
};
</script>
</head>
<body>
<div id="color-area" />
</body>
</html>