AssetTitle_Column

HTML

<script src="https://code.highcharts.com/highcharts.js"></script>
<div class="container">
  <div class="info">
    <div class="sigma">
      <img src="http://www.wrightslaw.com/blog/wp-content/plugins/wpdiscuz/assets/img/plugin-icon/icon_info.png" align="right" style="margin: 7px 0;"  />
    </div>      
  </div>
  <div id="chart1" style=""></div>
</div>

CSS

.container {
  width: 300px; 
  height: 300px; 
  background-color: #eceded; 
  position: relative;
}

.info {
  width: 290px; 
  height: 30px;
}

.sigma {
  display: none;
}

.container:hover .sigma{
    display: block;
}

#chart1 {
  cursor: pointer;
  width: 275px; 
  height: 220px; 
  overflow: visible; 
  margin: 0 auto;
  -webkit-box-shadow: 0px 1px 1px 1px rgba(171,172,172,1);
  -moz-box-shadow: 0px 1px 1px 1px rgba(171,172,172,1);
  box-shadow: 0px 1px 1px 1px rgba(171,172,172,1);  
}

.highcharts-container {
    position: inherit !important;
}
.highcharts-tooltip {
    z-index: 9998;
}

.highcharts-tooltip span {
    background-color: transparent;
    border: 0;
    color: black;
    z-index:9999!important;
}

JavaScript

$(function () {
    $('#chart1').highcharts({
        chart: {
            type: 'column'
        },
        colors: ['#e6e6e6'],
        credits: {
        	enabled: false
        },
        exporting: {
        	enabled: false
        },
        legend: {
        	enabled: false
        },        
        title: {
            text: ''
        },

        xAxis: {
            visible: false
        },
        yAxis: {
            visible: false
        },
        tooltip: {
                borderWidth: 0,
                backgroundColor: "transparent",
                borderRadius: 0,
                shadow: false,
                useHTML: true,       
                formatter: function () {
                    return '<div class="tooltop"> x: ' + this.x + '| y: ' + this.y + '</div>';
                },
            positioner: function () {
                return { x: 5, y: 0 };
            }
        },
        plotOptions: {
            column: {
                pointPadding: 0,
                borderWidth: 0,
                cursor: 'pointer',
                states: {
            				hover: {
                			color: '#f37021'                                                           
            				}
        				},
                useHTML: true,
                formatter: function () {
                  return '<span style="color:' + this.point.color + '"><b>' + this.point.name + '</b></span>';                 }                
            }
        },
        series: [{
            data: [49.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4, 49.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4]

        }]
    });
});