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HTML

            
              <body>
<script src="https://cdn.freecodecamp.org/testable-projects-fcc/v1/bundle.js"></script>
  <!-- d3 tip library -->
  <script src="http://labratrevenge.com/d3-tip/javascripts/d3.tip.v0.6.3.js"></script>
<div id='frame'>
  <div id = 'chart'></div>
                 </div>
</body>
<!-- 

Hello Camper!

For now, the test suite only works in Chrome! Please read the README below in the JS Editor before beginning. Feel free to delete this message once you have read it. Good luck and Happy Coding! 

- The freeCodeCamp Team 

-->
!

CSS

            
              body { 
  background-color: cce5f1;
}
#frame {
  text-align: center;
   margin-left: auto;
    margin-right: auto;
  height: 500px;
   width: 1100px;
   background: linear-gradient(35deg, #89c289, #a2d7eb);
}

#chart {
text-align: center;
   margin-left: auto;
    margin-right: auto;
  padding-top: 50px;
  
}

#title {
  text-align: center;
  font-style: italic;
  color: green;
}


.tooltip {
  background-color: green;
  font-style: italic;
}
!

JS

            
              
    const dataset = [
    [
      "1947-01-01",      243.1
    ],
    [
      "1947-04-01",      246.3
    ],
    [
      "1947-07-01",      250.1
    ],
    [
      "1947-10-01",      260.3
    ],
    [
      "1948-01-01",      266.2
    ],
    [
      "1948-04-01",      272.9
    ],
    [
      "1948-07-01",      279.5
    ],
    [
      "1948-10-01",      280.7
    ],
    [
      "1949-01-01",      275.4
    ],
    [
      "1949-04-01",      271.7
    ],
    [
      "1949-07-01",      273.3
    ],
    [
      "1949-10-01",      271
    ],
    [
      "1950-01-01",      281.2
    ],
    [
      "1950-04-01",      290.7
    ],
    [
      "1950-07-01",      308.5
    ],
    [
      "1950-10-01",      320.3
    ],
    [
      "1951-01-01",      336.4
    ],
    [
      "1951-04-01",      344.5
    ],
    [
      "1951-07-01",      351.8
    ],
    [
      "1951-10-01",      356.6
    ],
    [
      "1952-01-01",      360.2
    ],
    [
      "1952-04-01",      361.4
    ],
    [
      "1952-07-01",      368.1
    ],
    [
      "1952-10-01",      381.2
    ],
    [
      "1953-01-01",      388.5
    ],
    [
      "1953-04-01",      392.3
    ],
    [
      "1953-07-01",      391.7
    ],
    [
      "1953-10-01",      386.5
    ],
    [
      "1954-01-01",      385.9
    ],
    [
      "1954-04-01",      386.7
    ],
    [
      "1954-07-01",      391.6
    ],
    [
      "1954-10-01",      400.3
    ],
    [
      "1955-01-01",      413.8
    ],
    [
      "1955-04-01",      422.2
    ],
    [
      "1955-07-01",      430.9
    ],
    [
      "1955-10-01",      437.8
    ],
      [
      "1956-01-01",      440.5
    ],
    [
      "1956-04-01",      446.8
    ],
    [
      "1956-07-01",      452
    ],
    [
      "1956-10-01",      461.3
    ],
    [
      "1957-01-01",      470.6
    ],
    [
      "1957-04-01",      472.8
    ],
    [
      "1957-07-01",      480.3
    ],
    [
      "1957-10-01",      475.7
    ],
    [
      "1958-01-01",      468.4
    ],
    [
      "1958-04-01",      472.8
    ],
    [
      "1958-07-01",      486.7
    ],
    [
      "1958-10-01",      500.4
    ],
    [
      "1959-01-01",      511.1
    ],
    [
      "1959-04-01",      524.2
    ],
    [
      "1959-07-01",      525.2
    ],
    [
      "1959-10-01",      529.3
    ],
    [
      "1960-01-01",      543.3
    ],
    [
      "1960-04-01",      542.7
    ],
    [
      "1960-07-01",      546
    ],
    [
      "1960-10-01",      541.1
    ],
    [
      "1961-01-01",      545.9
    ],
    [
      "1961-04-01",      557.4
    ],
    [
      "1961-07-01",      568.2
    ],
    [
      "1961-10-01",      581.6
    ],
    [
      "1962-01-01",
      595.2
    ],
    [
      "1962-04-01",
      602.6
    ],
    [
      "1962-07-01",
      609.6
    ],
    [
      "1962-10-01",
      613.1
    ],
    [
      "1963-01-01",
      622.7
    ],
    [
      "1963-04-01",
      631.8
    ],
    [
      "1963-07-01",
      645
    ],
    [
      "1963-10-01",
      654.8
    ],
    [
      "1964-01-01",
      671.1
    ],
    [
      "1964-04-01",
      680.8
    ],
    [
      "1964-07-01",
      692.8
    ],
    [
      "1964-10-01",
      698.4
    ],
    [
      "1965-01-01",
      719.2
    ],
    [
      "1965-04-01",
      732.4
    ],
    [
      "1965-07-01",
      750.2
    ],
    [
      "1965-10-01",
      773.1
    ],
    [
      "1966-01-01",
      797.3
    ],
    [
      "1966-04-01",
      807.2
    ],
    [
      "1966-07-01",
      820.8
    ],
    [
      "1966-10-01",
      834.9
    ],
    [
      "1967-01-01",
      846
    ],
    [
      "1967-04-01",
      851.1
    ],
    [
      "1967-07-01",
      866.6
    ],
    [
      "1967-10-01",
      883.2
    ],
    [
      "1968-01-01",
      911.1
    ],
    [
      "1968-04-01",
      936.3
    ],
    [
      "1968-07-01",
      952.3
    ],
    [
      "1968-10-01",
      970.1
    ],
    [
      "1969-01-01",
      995.4
    ],
    [
      "1969-04-01",
      1011.4
    ],
    [
      "1969-07-01",
      1032
    ],
    [
      "1969-10-01",
      1040.7
    ],
    [
      "1970-01-01",
      1053.5
    ],
    [
      "1970-04-01",
      1070.1
    ],
    [
      "1970-07-01",
      1088.5
    ],
    [
      "1970-10-01",
      1091.5
    ],
    [
      "1971-01-01",
      1137.8
    ],
    [
      "1971-04-01",
      1159.4
    ],
    [
      "1971-07-01",
      1180.3
    ],
    [
      "1971-10-01",
      1193.6
    ],
    [
      "1972-01-01",
      1233.8
    ],
    [
      "1972-04-01",
      1270.1
    ],
    [
      "1972-07-01",
      1293.8
    ],
    [
      "1972-10-01",
      1332
    ],
    [
      "1973-01-01",
      1380.7
    ],
    [
      "1973-04-01",
      1417.6
    ],
    [
      "1973-07-01",
      1436.8
    ],
    [
      "1973-10-01",
      1479.1
    ],
    [
      "1974-01-01",
      1494.7
    ],
    [
      "1974-04-01",
      1534.2
    ],
    [
      "1974-07-01",
      1563.4
    ],
    [
      "1974-10-01",
      1603
    ],
    [
      "1975-01-01",
      1619.6
    ],
    [
      "1975-04-01",
      1656.4
    ],
    [
      "1975-07-01",
      1713.8
    ],
    [
      "1975-10-01",
      1765.9
    ],
    [
      "1976-01-01",
      1824.5
    ],
    [
      "1976-04-01",
      1856.9
    ],
    [
      "1976-07-01",
      1890.5
    ],
    [
      "1976-10-01",
      1938.4
    ],
    [
      "1977-01-01",
      1992.5
    ],
    [
      "1977-04-01",
      2060.2
    ],
    [
      "1977-07-01",
      2122.4
    ],
    [
      "1977-10-01",
      2168.7
    ],
    [
      "1978-01-01",
      2208.7
    ],
    [
      "1978-04-01",
      2336.6
    ],
    [
      "1978-07-01",
      2398.9
    ],
    [
      "1978-10-01",
      2482.2
    ],
    [
      "1979-01-01",
      2531.6
    ],
    [
      "1979-04-01",
      2595.9
    ],
    [
      "1979-07-01",
      2670.4
    ],
    [
      "1979-10-01",
      2730.7
    ],
    [
      "1980-01-01",
      2796.5
    ],
    [
      "1980-04-01",
      2799.9
    ],
    [
      "1980-07-01",
      2860
    ],
    [
      "1980-10-01",
      2993.5
    ],
    [
      "1981-01-01",
      3131.8
    ],
    [
      "1981-04-01",
      3167.3
    ],
    [
      "1981-07-01",
      3261.2
    ],
    [
      "1981-10-01",
      3283.5
    ],
    [
      "1982-01-01",
      3273.8
    ],
    [
      "1982-04-01",
      3331.3
    ],
    [
      "1982-07-01",
      3367.1
    ],
    [
      "1982-10-01",
      3407.8
    ],
    [
      "1983-01-01",
      3480.3
    ],
    [
      "1983-04-01",
      3583.8
    ],
    [
      "1983-07-01",
      3692.3
    ],
    [
      "1983-10-01",
      3796.1
    ],
    [
      "1984-01-01",
      3912.8
    ],
    [
      "1984-04-01",
      4015
    ],
    [
      "1984-07-01",
      4087.4
    ],
    [
      "1984-10-01",
      4147.6
    ],
    [
      "1985-01-01",
      4237
    ],
    [
      "1985-04-01",
      4302.3
    ],
    [
      "1985-07-01",
      4394.6
    ],
    [
      "1985-10-01",
      4453.1
    ],
    [
      "1986-01-01",
      4516.3
    ],
    [
      "1986-04-01",
      4555.2
    ],
    [
      "1986-07-01",
      4619.6
    ],
    [
      "1986-10-01",
      4669.4
    ],
    [
      "1987-01-01",
      4736.2
    ],
    [
      "1987-04-01",
      4821.5
    ],
    [
      "1987-07-01",
      4900.5
    ],
    [
      "1987-10-01",
      5022.7
    ],
    [
      "1988-01-01",
      5090.6
    ],
    [
      "1988-04-01",
      5207.7
    ],
    [
      "1988-07-01",
      5299.5
    ],
    [
      "1988-10-01",
      5412.7
    ],
    [
      "1989-01-01",
      5527.4
    ],
    [
      "1989-04-01",
      5628.4
    ],
    [
      "1989-07-01",
      5711.6
    ],
    [
      "1989-10-01",
      5763.4
    ],
    [
      "1990-01-01",
      5890.8
    ],
    [
      "1990-04-01",
      5974.7
    ],
    [
      "1990-07-01",
      6029.5
    ],
    [
      "1990-10-01",
      6023.3
    ],
    [
      "1991-01-01",
      6054.9
    ],
    [
      "1991-04-01",
      6143.6
    ],
    [
      "1991-07-01",
      6218.4
    ],
    [
      "1991-10-01",
      6279.3
    ],
    [
      "1992-01-01",
      6380.8
    ],
    [
      "1992-04-01",
      6492.3
    ],
    [
      "1992-07-01",
      6586.5
    ],
    [
      "1992-10-01",
      6697.6
    ],
    [
      "1993-01-01",
      6748.2
    ],
    [
      "1993-04-01",
      6829.6
    ],
    [
      "1993-07-01",
      6904.2
    ],
    [
      "1993-10-01",
      7032.8
    ],
    [
      "1994-01-01",
      7136.3
    ],
    [
      "1994-04-01",
      7269.8
    ],
    [
      "1994-07-01",
      7352.3
    ],
    [
      "1994-10-01",
      7476.7
    ],
    [
      "1995-01-01",
      7545.3
    ],
    [
      "1995-04-01",
      7604.9
    ],
    [
      "1995-07-01",
      7706.5
    ],
    [
      "1995-10-01",
      7799.5
    ],
    [
      "1996-01-01",
      7893.1
    ],
    [
      "1996-04-01",
      8061.5
    ],
    [
      "1996-07-01",
      8159
    ],
    [
      "1996-10-01",
      8287.1
    ],
    [
      "1997-01-01",
      8402.1
    ],
    [
      "1997-04-01",
      8551.9
    ],
    [
      "1997-07-01",
      8691.8
    ],
    [
      "1997-10-01",
      8788.3
    ],
    [
      "1998-01-01",
      8889.7
    ],
    [
      "1998-04-01",
      8994.7
    ],
    [
      "1998-07-01",
      9146.5
    ],
    [
      "1998-10-01",
      9325.7
    ],
    [
      "1999-01-01",
      9447.1
    ],
    [
      "1999-04-01",
      9557
    ],
    [
      "1999-07-01",
      9712.3
    ],
    [
      "1999-10-01",
      9926.1
    ],
    [
      "2000-01-01",
      10031
    ],
    [
      "2000-04-01",
      10278.3
    ],
    [
      "2000-07-01",
      10357.4
    ],
    [
      "2000-10-01",
      10472.3
    ],
    [
      "2001-01-01",
      10508.1
    ],
    [
      "2001-04-01",
      10638.4
    ],
    [
      "2001-07-01",
      10639.5
    ],
    [
      "2001-10-01",
      10701.3
    ],
    [
      "2002-01-01",
      10834.4
    ],
    [
      "2002-04-01",
      10934.8
    ],
    [
      "2002-07-01",
      11037.1
    ],
    [
      "2002-10-01",
      11103.8
    ],
    [
      "2003-01-01",
      11230.1
    ],
    [
      "2003-04-01",
      11370.7
    ],
    [
      "2003-07-01",
      11625.1
    ],
    [
      "2003-10-01",
      11816.8
    ],
    [
      "2004-01-01",
      11988.4
    ],
    [
      "2004-04-01",
      12181.4
    ],
    [
      "2004-07-01",
      12367.7
    ],
    [
      "2004-10-01",
      12562.2
    ],
    [
      "2005-01-01",
      12813.7
    ],
    [
      "2005-04-01",
      12974.1
    ],
    [
      "2005-07-01",
      13205.4
    ],
    [
      "2005-10-01",
      13381.6
    ],
    [
      "2006-01-01",
      13648.9
    ],
    [
      "2006-04-01",
      13799.8
    ],
    [
      "2006-07-01",
      13908.5
    ],
    [
      "2006-10-01",
      14066.4
    ],
    [
      "2007-01-01",
      14233.2
    ],
    [
      "2007-04-01",
      14422.3
    ],
    [
      "2007-07-01",
      14569.7
    ],
    [
      "2007-10-01",
      14685.3
    ],
    [
      "2008-01-01",
      14668.4
    ],
    [
      "2008-04-01",
      14813
    ],
    [
      "2008-07-01",
      14843
    ],
    [
      "2008-10-01",
      14549.9
    ],
    [
      "2009-01-01",
      14383.9
    ],
    [
      "2009-04-01",
      14340.4
    ],
    [
      "2009-07-01",
      14384.1
    ],
    [
      "2009-10-01",
      14566.5
    ],
    [
      "2010-01-01",
      14681.1
    ],
    [
      "2010-04-01",
      14888.6
    ],
    [
      "2010-07-01",
      15057.7
    ],
    [
      "2010-10-01",
      15230.2
    ],
    [
      "2011-01-01",
      15238.4
    ],
    [
      "2011-04-01",
      15460.9
    ],
    [
      "2011-07-01",
      15587.1
    ],
    [
      "2011-10-01",
      15785.3
    ],
    [
      "2012-01-01",
      15973.9
    ],
    [
      "2012-04-01",
      16121.9
    ],
    [
      "2012-07-01",
      16227.9
    ],
    [
      "2012-10-01",
      16297.3
    ],
    [
      "2013-01-01",
      16440.7
    ],
    [
      "2013-04-01",
      16526.8
    ],
    [
      "2013-07-01",
      16727.5
    ],
    [
      "2013-10-01",
      16957.6
    ],
    [
      "2014-01-01",
      16984.3
    ],
    [
      "2014-04-01",
      17270
    ],
    [
      "2014-07-01",
      17522.1
    ],
    [
      "2014-10-01",
      17615.9
    ],
    [
      "2015-01-01",
      17649.3
    ],
    [
      "2015-04-01",
      17913.7
    ],
    [
      "2015-07-01",
      18064.7
    ]
      ];
        
    const w = 1000;
    const h = 400;

 const margin = {left:75,right:75,top:75,bottom:75};
    
    const svg = d3.select("div")
                  .append("svg")
                  .attr("width", w)
                  .attr("height", h)
    .style("background-color", "#ecf7fa")
    .style("opacity", "0.9");   

var parseDate = d3.timeParse("%Y-%m-%d");

 const xScale = d3.scaleTime()      
    .domain(d3.extent(dataset, function(d) {return parseDate(d[0]);}))  
      .range([margin.left, w - margin.right]);
   

 const yScale = d3.scaleLinear()
                     .domain([0, d3.max(dataset, (d) => d[1]) ])
                     .range([h - margin.top,  margin.bottom]);

  var yAxis = d3.axisLeft(yScale);
var xAxis = d3.axisBottom(xScale);
var yPadding = h - margin.bottom ;

var tooltip = d3.select('body')
.append('div')
.attr("class", "tooltip")
.style('position', 'absolute')
.style('padding', '0 10px')
.style('background', 'white')
.style('opacity', 0)
.style("display", "none");

svg.append("g")
.attr("class","axis y")
.attr("transform", "translate(" + margin.left + ","+0+")")
.attr("id", "y-axis")
.call(yAxis);

svg.append("g")
.attr("class","axis x")
 .attr("transform","translate(0," + yPadding + ")")
.attr("id", "x-axis")
.call(xAxis);

    svg.selectAll("rect")
       .data(dataset)
       .enter()
       .append("rect")
       .attr("x", (d, i) => xScale(parseDate(d[0])))
       .attr("y", (d) => yScale(d[1]) - margin.bottom + margin.top)
       .attr("width", ((w / dataset.length)-1))
       .attr("height", function(d) {return (h - margin.top) - yScale(d[1]);})
       .attr("fill", "#b75e52")
       .attr("class", "bar")
       .attr("data-date", (d) => d[0])
       .attr("data-gdp", (d) => d[1])
              .on('mouseover', function(d) {
              /*  This bit isn't working
              tooltip.text(d)
              .stlye('left', (d3.event.pageX - 35) + 'px')
              .stlye('top', (d3.event.pageY - 30) + 'px');
              */
                  d3.select(this)
                  .style('opacity', '1')
                   .style('fill', 'brown')
       tooltip
              .transition()  //Opacity transition when the tooltip appears
              .duration(500)
       .attr("width", 60)
       .attr("x", 60)
              .style("opacity", "1")                           
              .style("display", "block")
      .text(hello);
                                            })
                  .on('mouseout', function(d) {
                        d3.select(this)
                        .style('opacity', '1')
                         .style('fill', '#b75e52');
                                              }
                 );

/*
       .append("div")
        .attr("class", "tooltip")
        .attr("data-date", (d) => d[0])
        .attr("data-gdp", (d) => d[1])
        .text((d) => d[1] + " Billion USD, " + d[0]);
      */
  
 svg.append("text")
      .attr("class", "title")
      .attr("id", "title")
      .attr("x", w/2)
      .attr("y", margin.top)
      .attr("text-anchor", "middle")
      .text("Responsive GDP Bar Chart");

svg.append("text")
    .attr("class", "x label")
    .attr("text-anchor", "end")
    .attr("x", w/2)
    .attr("y", h - 6)
    .text("Year");

svg.append("text")
    .attr("class", "y label")
    .attr("transform", "rotate(-90)")
    .attr("text-anchor", "end")
    .attr("x", -180)
    .attr("y", 20)
     .text("GDP (USD)");
!
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