<!DOCTYPE html> <meta charset=“utf-8”> <title>HTML Mouse Test</title> <body> <script src=“../../d3.js”></script> <script>

var body = d3.select(“body”);

var div = body.append(“div”)

.style("width", "1000px")
.style("height", "500px")
.style("border", "solid black 1px")
.style("cursor", "crosshair");

var span = body.append(“span”);

d3.select(window).on(“mousemove”, function() {

span.text(d3.mouse(div[0][0]));

});

</script>