title: Highcharts Areaspline - Highlight a column on hover effect
body: <p>Stuck with the problem of highlighting column of area spline. Didn't find any solutions via Chartjs, and Highcharts didn't help me either. I need to highlight x-axis column, but till the chart curve. In my code, I'm using Crosshair, but it's not exactly what I need.</p>
  
  <pre><code>xAxis: {
          allowDecimals:false,
          min: 1,
          max: 12,
          categories: ['', 'JAN', 'FEB', 'MAR', 'APR', 'MAY', 'JUN', 'JUL', 'AUG', 'SEP', 'OCT', 'NOV', 'DEC', ''],
          labels: {
              y: -10,
              style: {
                  color: '#66717c',
                  fontSize: '13px'
              }
          },
          tickWidth: 0,
          lineColor: "#fff",
          crosshair: {
              width: 60,
              color: 'rgba(73,168,222,0.5)',
              zIndex: 5
          }
      },
      yAxis: {
          title: {
              text: ''
          },
          gridLineWidth: '0',
          visible: false
      }
  </code></pre>
  
  <p>My result: </p>
  
  <p><img src="https://i.stack.imgur.com/j5xSb.jpg" alt="Img01"></p>
  
  <p>And what I need: </p>
  
  <p><img src="https://i.stack.imgur.com/pD7kl.png" alt="Img02"></p>
  
  <p>Does anybody know how to achieve this?</p>