La Wantzenau.html

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<style>
.highcharts-tooltip span {
    height:auto;
    width:80px;
    white-space:normal !important; // add this line...
}

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<div id="container" style="width: 180px; height: 280px; margin-left:-18;"></div>
<script>
$(document).ready(function () {
    	$('#container').highcharts({
        	chart: {
            	type: 'column'
        	},
        	title: {
            	text: 'Mun. 2008'
        	},
        	subtitle: {
            	text: 'Source: data.gouv.fr'
        	},
        	xAxis: {
            	categories: [
                	'Divers'
            	]
        	},
        	yAxis: {
            	min: 0,
            	title: {
                	text: 'Voix (%)'
            	}
        	},
        	tooltip: {
            	headerFormat: '<span style="font-size:16px; width:75px;">{point.key}</span><table>',
            	pointFormat: '<tr><td style="padding:0"><b>{point.y:.1f} %</b></td></tr>',
            	shared: true,
            	useHTML: true
        	},
        	plotOptions: {
            	column: {
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        	series: [{
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            	name:'Voix',
            	data: [{y:100,color:'#82d1ff'}],
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                        fontFamily: 'Verdana, sans-serif',
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