HighCharts: Labels visible over tooltip

Question

Labels on my chart are showing over tooltip, which doesn't look very nice. I tried to play with zIndex, but to no result. How can I make tooltips not transparent? Here's my jsFiddle: http://www.jsfiddle.net/4scfH/3/

$(function() {
  var chart;
  $(document).ready(function() {
    chart = new Highcharts.Chart({
      chart: {
        renderTo: 'graf1',
        plotBackgroundColor: null,
        plotBorderWidth: null,
        plotShadow: false
      },

      title: {
        margin: 40,
        text: 'Podíl všech potřeb'
      },
      tooltip: {
        //pointFormat: '<b>{point.y} Kč [{point.percentage}%]</b>',
        percentageDecimals: 2,
        backgroundColor: "rgba(255,255,255,1)",
        formatter: function() {
          return this.point.name + '<br />' + '<b>' + Highcharts.numberFormat(this.y).replace(",", " ") + ' Kč [' + Highcharts.numberFormat(this.percentage, 2) + '%]</b>';
        }
      },
      plotOptions: {
        pie: {
          allowPointSelect: true,
          cursor: 'pointer',
          dataLabels: {
            enabled: true,
            color: '#000000',
            connectorWidth: 2,
            useHTML: true,
            formatter: function() {
              return '<span style="color:' + this.point.color + '"><b>' + this.point.name + '</b></span>';
            }
          }
        }
      },
      series: [{
        type: 'pie',
        name: 'Potřeba',
        data: [
          ['Firefox', 45.0],
          ['IE', 26.8], {
            name: 'Chrome',
            y: 12.8,
            sliced: true,
            selected: true
          },
          ['Safari', 8.5],
          ['Opera', 6.2],
          ['Others', 0.7]
        ]
      }]
    });
  });
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="http://code.highcharts.com/highcharts.js"></script>
<div id="graf1" style="width: 400px; height: 250px; float:left"></div>

Answer 1

I had same issue. My solution. Tooltip - useHTML = true. Tooltip - Formatter = HTML code there with one div container. here margin in negative value is important in css.

tooltip: {
    backgroundColor: "rgba(255,255,255,1)",
    useHTML: true,
    formatter: function() {
        var html = [];
        html.push('<b>Correlation to ' + this.point.p + '</b><br>');
        if (null != this.point.associatedPoints 
                && typeof this.point.associatedPoints != 'undefined' 
                && this.point.associatedPoints.length > 0) {
            $.each(this.point.associatedPoints, function(i, associatedPoint) {
                html.push('Responses: ' + associatedPoint.nFormatted);
            });
        }
        return '<div class="tooltip-body">' + html.join('') + '</div>';
    }

CSS:

.highcharts-tooltip span {
    z-index: 9999 !important;
    top:2px !important;
    left:2px !important;
}
.highcharts-tooltip span .tooltip-body{
    background-color:white;
    padding:6px; 
    z-index:9999 !important;
    margin-bottom:-14px;
    margin-right:-14px;
}

Answer 2

If you set tooltip.backgroundColor to "rgba(255,255,255,1)" you'll get tooltip with "no transparency"

You will have to remove useHTML: true in the pie settings.

Fork of your jsfiddle: http://jsfiddle.net/kairs/Z3UZ8/1/

tooltip: {
  backgroundColor: "rgba(255,255,255,1)"
}

Documentation on highchart

Answer 3

I had the same problem. The Labels were visible over the tooltip. Removing useHTML=true for the labels worked for me.

Answer 4

For Highchart tooltips with html format

Highchart config

tooltip: {
    borderWidth: 0,
    backgroundColor: "rgba(255,255,255,0)",
    shadow: false,
    useHTML: true
    ........
},

CSS:

.highcharts-tooltip>span {
    background-color: #fff;
    border: 1px solid #172F8F;
    border-radius: 5px;
    opacity: 1;
    z-index: 9999!important;
    padding: .8em;
    left: 0!important;
    top: 0!important;
}

Answer 5

I still had issues with some of the solutions around, setting z-index: 999 on .tooltip wasn't having any effect because of the various container divs. But, I've found setting this works nicely (when legend and tooltip are HTML). No need for setting other z-indexes either:

.highcharts-legend { z-index: -1; }

Answer 6

You can set useHTML and define your own tooltip via css:

http://jsfiddle.net/4scfH/4/

tooltip: {
    borderWidth: 0,
    backgroundColor: "rgba(255,255,255,0)",
    borderRadius: 0,
    shadow: false,
    useHTML: true,
    percentageDecimals: 2,
    backgroundColor: "rgba(255,255,255,1)",
    formatter: function () {
        return '<div class="tooltip">' + this.point.name + '<br />' + '<b>' + Highcharts.numberFormat(this.y).replace(",", " ") + ' Kč [' + Highcharts.numberFormat(this.percentage, 2) + '%]</b></div>';
    }
},

CSS

.label {
    z-index: 1 !important;
}

.highcharts-tooltip span {
    background-color: white;
    border:1 px solid green;
    opacity: 1;
    z-index: 9999 !important;
}

.tooltip {
    padding: 5px;
}