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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

              <h1>Earthquakes in the last 24 Hours</h1>
              body {
	background: #bbb;
h1 {
	text-align: center;
	text-transform: uppercase;
	color: #444;
	font-family: sans-serif;
	margin: 1em 0;
	font-size: 2em;
svg {
	margin: 0 auto;
	display: block;
	background: #bbb;

.sphere {
	fill: #bbb;

.land {
	fill: #666;

.boundry {
	fill: none;
	stroke: #bbb;
	stroke-linejoin: round;
	stroke-linecap: round;
	vector-effect: non-scaling-stroke;

.overlay {
	fill: none;
	pointer-events: all;
              // Setup the svg element size and margins
var margin = {top: 20, right: 20, bottom: 20, left: 20},
    width = 1200 - margin.left - margin.right,
    height = 800 - margin.top - margin.bottom;

// Set the projection methods for the world map
var projection = d3.geoMercator()
                   .translate([width/2, height/1.5])
                   .scale((width - 1) / 2 / Math.PI);

// Set the world map path
var path = d3.geoPath()

// Create a variable to hold the main svg element
var svg = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height);

// Group to hold the maps and borders
var g = svg.append('g')
           .attr('id', 'world-map');

// Add a clip path element to the world map group
// for the x axis 
 .attr('id', 'clip-path')
 .attr('x', 0)
 .attr('y', 30)
 .attr('width', width)
 .attr('height', height - 30)

// Group to hold all of the earthquake elements
var gQuakes = svg.append('g')
                 .attr('id', 'all-quakes');

// Import the geoJSON file for the world map
d3.json('https://s3-us-west-2.amazonaws.com/s.cdpn.io/25240/world-110m.json', function(error, world) {
	if(error) throw error;
	// Setup 24 hours ago object
	var dateObj = new Date();
	dateObj.setDate(dateObj.getDate() - 1);
	// Append the World Map
	var worldMap = g.append('path')
	 .attr('clip-path', 'url(#clip-path)') // attaches the clip path to not draw the map underneath the x axis
	 .datum(topojson.merge(world, world.objects.countries.geometries)) // draws a single land object for the entire map
	 .attr('class', 'land')
	 .attr('d', path)
	// Append the World Map Country Borders
	 .datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; }))
	 .attr('class', 'boundry')
	 .attr('d', path);
	// Create the x scale based on the domain of the 24 hour ago object and now
	var x = d3.scaleTime()
						.domain([dateObj, new Date()])
						.range([0, width - margin.right - margin.left]);

	// Append the xAxis on top
	var xAxis = svg.append('g')
								 .attr('id', 'xAxis')
								 .attr('transform', 'translate(20, 20)')
	// Import the last 24 hours of earthquake data from USGS
	d3.json('https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_day.geojson', function(error, data) {
		if(error) throw error;
		var quake = data.features.reverse();
		// Create a group with the quake id to hold the quake circle and pulse circle
		var earthquakeGroups = gQuakes.selectAll('g')
		   .attr('id', function(d) {
			     return d.id;
		   .attr('class', 'quake-group');
		//Create the pulse-circle circles for the earthquake pulse
		   .attr('class', 'circle pulse-circle')
		   .attr('cx', function(d) {
			     return projection([d.geometry.coordinates[0], d.geometry.coordinates[1]])[0];
		   .attr('cy', function(d) {
			     return projection([d.geometry.coordinates[0], d.geometry.coordinates[1]])[1];
			 .attr('r', function(d) {
			     return 0;
		   .attr('fill', '#fff');
		// Create the main quake circle with title
			.attr('cx', function(d) {
			     return projection([d.geometry.coordinates[0], d.geometry.coordinates[1]])[0];
		  .attr('cy', function(d) {
			     return projection([d.geometry.coordinates[0], d.geometry.coordinates[1]])[1];
		  .attr('r', 0 )
		  .attr('class', 'circle quake-circle')
		  .style('fill', 'red')
		  .style('opacity', 0.75)
		  .text(function(d) {
		  	return 'Magnitue ' + d.properties.mag + ' ' + d.properties.place;

		// Function that calculates the difference between the earthquake and 24 hours ago and
		// creates a delay property.
		var setQuakeDelay = function() {
			for(var i = 0, max = quake.length; i < max; i++){
				var timeDiff = quake[i].properties.time - dateObj;
				var timeDiffObj = new Date(timeDiff);
				quake[i].delay = Date.parse(timeDiffObj) / 5000; // Speed up the animation, otherwise it would take 24 hours ><
		// Grab the longest delay for the xAxis marker
		var longestDelay = quake[quake.length - 1].delay;
		// Changes the radius of the earthquakes to their magnitue using a transition
		// and the delay created from the setQuakeDelay function
		var quakeCircles = svg.selectAll('.quake-circle')
			 .delay(function(d) {
				 return d.delay;
			 .attr('r', function(d) {
			   if(d.properties.mag < 0) {
					 return 0.1;
				 } else {
					 return d.properties.mag				 
		// Changes the radius of the pulse circle to eight times the magnitude
		// and fades out as it expands over two seconds
		var pulseCircles = svg.selectAll('.pulse-circle')
			 .delay(function(d) {
				 return d.delay;
			 .attr('r', function(d) {
			   if(d.properties.mag < 0) {
					 return 0.1 * 8;
				 } else {
				 	 return d.properties.mag * 8;
			 .style('opacity', 0)
		// Add the time marker that moves across the xAxis while the animation it playing.
		// It's not perfectly in sync, but it's close enough for this example. The length of 
		// the animation is equal to the longest delay that we calculated earlier.
		var timeline = xAxis.append('circle')
		     .attr('class', 'transition-circle')
		     .attr('cx', 0)
		     .attr('cy', 0)
		     .attr('r', 3)
		     .style('fill', 'red')
		     .duration(longestDelay + 1000)
		     .attr('cx', 1120)

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