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HTML Settings

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.

<div class="main">
  <div class="content">
      <h1>@horse_js tweets over time</h1>
      <div class="content">
        <svg id="chart"></svg>        

              html, body {
  background-color: #f5eeec;

.main {
  width: 100%;
  font: 10px sans-serif;
  display: flex;
  text-align: center;
  font-family: 'Arvo', sans-serif;

h1 {
  font-size: 40px;

.content {
  margin: auto;

.horse-point {
  fill: rgba(224, 0, 120, 0.3)

.chart {
  margin-top: 100px;
  overflow: visible

.tweet {
  font: normal normal 14px/1.4 Helvetica,Roboto,"Segoe UI",Calibri,sans-serif;
  .tweet-header {
    .tweet-author {
      font-size: 13px;
      color: #6F7888;
  .tweet-body {
    margin-top: 14px;
  time {
    font-size: 14px;
    color: #697888;

.d3-tip {
  line-height: 1;
  font-weight: bold;
  padding: 12px;
  background: #fff;
  color: #333;
  border-radius: 5px;
  transition: opacity 0.2s ease-in-out;
  max-width: 400px;

/* Creates a small triangle extender for the tooltip */
.d3-tip:after {
  width: 100%;
  box-sizing: border-box;
  display: inline;
  font-size: 10px;
  line-height: 1;
  color: #fff;
  content: "\25BC";
  position: absolute;
  text-align: center;

/* Style northward tooltips specifically */
.d3-tip.n:after {
  margin: -2px 0 0 0;
  top: 100%;
  left: 0;

.d3-tip span {
  transition: scale 0.2s ease;

              class ScatterPlot {
  constructor(el, options) {
    this.el = el;

    if (options) {
      this.data = options.data || [];
      this.tooltip = options.tooltip;
      this.pointClass = options.pointClass || '';
      this.data = options.data || [];
      this.width = options.width || 960;
      this.height = options.height || 500;


  render() {    
    let margin = { top: 20, right: 15, bottom: 60, left: 60 };
    let height = this.height - margin.top - margin.bottom;
    let width = this.width - margin.right - margin.left;
    let data = this.data;    

    // create the chart
    let chart = d3.select(this.el)
      .attr('width', width + margin.right + margin.left)
      .attr('height', height + margin.top + margin.bottom);
    // define the x-axis
    let minDateValue = d3.min(data, d => {
      return new Date(moment(d.created_at).format('MM-DD-YYYY'));

    let maxDateValue = d3.max(data, d => {
      return new Date(moment(d.created_at).format('MM-DD-YYYY'));

    let x = d3.scaleTime()
      .domain([minDateValue, maxDateValue])
      .range([0, width]);

    let xAxis = d3.axisBottom(x).tickFormat(d3.timeFormat('%b-%y'));
    // define y axis
    let minTimeValue = new Date().setHours(0, 0, 0, 0);
    let maxTimeValue = new Date().setHours(23, 59, 59, 999);

    let y = d3.scaleTime()
      .domain([minTimeValue, maxTimeValue])
      .range([height, 0]);

    let yAxis = d3.axisLeft(y).ticks(24).tickFormat(d3.timeFormat('%H:%M'));
    let main = chart.append('g')
      .attr('transform', `translate(${margin.left}, ${margin.top})`)
      .attr('width', width)
      .attr('height', height)
      .attr('class', 'main');
    // append x axis
      .attr('transform', `translate(0, ${height})`)
      .attr('class', 'main axis date')
    // append the y axis
      .attr('class', 'main axis date')

// get the data
let data = fetch('https://s3-us-west-2.amazonaws.com/s.cdpn.io/4548/time-series.json').then(d => d.json()).then(data => {

  // masage the data a bit to get it in the right format
  let horseData = data.map(item => {
    return item.horse;

  // create the chart
  let chart = new ScatterPlot('#chart', {
    data: horseData,
    width: 960,
    pointClass: 'horse-point',
    tooltip: function(d) {
      return `
        <div class="tweet">
          <div class="tweet-header">
            <div class="tweet-author">
              <span class="tweet-screenname">@horse_js</span>
          <div class="tweet-body">
              <time>${moment(d.created_at).format('LT')} - ${moment(d.created_at).format('MMMM Do YYYY')}</time>

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