4 - Graph with rotated axis text

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<!DOCTYPE html>
<meta charset="utf-8">
<style> /* set the CSS */

body {
    font: 12px Arial;
}

path {
    stroke: steelblue;
    stroke-width: 2;
    fill: none;
}

.axis path,
.axis line {
    fill: none;
    stroke: grey;
    stroke-width: 1;
    shape-rendering: crispEdges;
}

.grid .tick {
    stroke: lightgrey;
    stroke-opacity: 0.7;
    shape-rendering: crispEdges;
}

.grid path {
    stroke-width: 0;
}

.area {
    fill: lightsteelblue;
    stroke-width: 0;
}

text.shadow {
    stroke: white;
    stroke-width: 2.5px;
    opacity: 0.9;
}

</style>
<body>

<script src="https://d3js.org/d3.v3.min.js"></script>

// Set the dimensions of the canvas / graph
    var margin = {top: 30, right: 40, bottom: 70, left: 50},
            width = 600 - margin.left - margin.right,
            height = 270 - margin.top - margin.bottom;

// Parse the date / time
    var parseDate = d3.time.format("%d-%b-%y").parse;

// Set the ranges
    var x = d3.time.scale().range([0, width]);
    var y = d3.scale.linear().range([height, 0]);

// Define the axes
    var xAxis = d3.svg.axis().scale(x)
            .orient("bottom").ticks(10)
            .tickFormat(d3.time.format("%Y-%m-%d"));

var yAxis = d3.svg.axis().scale(y)
            .orient("left").ticks(5);

// Define the line
    var valueline = d3.svg.line()
            .x(function (d) {
                return x(d.date);
            })
            .y(function (d) {
                return y(d.close);
            });

// Adds the svg canvas
    var svg = d3.select("body")
            .append("svg")
            .attr("width", width + margin.left + margin.right)
            .attr("height", height + margin.top + margin.bottom)
            .append("g")
            .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

// Get the data
    d3.csv("data.csv", function (error, data) {
        data.forEach(function (d) {
            d.date = parseDate(d.date);
            d.close = +d.close;
        });

// Scale the range of the data
        x.domain(d3.extent(data, function (d) {
            return d.date;
        }));
        y.domain([0, d3.max(data, function (d) {
            return d.close;
        })]);

// Add the valueline path.
        svg.append("path")
                .attr("class", "line")
                .attr("d", valueline(data));

// Add the X Axis
        svg.append("g")
                .attr("class", "x axis")
                .attr("transform", "translate(0," + height + ")")
                .call(xAxis)
                .selectAll("text")
                    .style("text-anchor", "end")
                    .attr("dx", "-.8em")
                    .attr("dy", ".15em")
                    .attr("transform", "rotate(-65)");

// Add the Y Axis
        svg.append("g")
                .attr("class", "y axis")
                .call(yAxis);

});

</script>
</body>

Modified http://d3js.org/d3.v3.min.js to a secure url

https://d3js.org/d3.v3.min.js