Highcharts - Column width not responsive - highcharts

Question

I am using Highcharts for one of my projects and have unknown problem with columns responsivity. Since it looks like Highcharts column graphs are responsive by default, my is stucked always on the same column width:
new Highcharts.Chart("highcharts-994d8ebb-5c08-4c83-b4d4-265ed2340006", {
"chart": {
"type": "column",
"alignTicks": false
},
"plotOptions": {
"series": {
"dataLabels": {
"enabled": true
},
"enableMouseTracking": true,
"animation": true
}
},
"title": {
"text": "Istorija Snage"
},
"subtitle": {
"text": "Poslednjih 30 dana"
},
"exporting": {
"enabled": false
},
"yAxis": [{
"title": {
"text": "Snaga"
},
"labels": {
"format": "{value} MW"
}
}],
"xAxis": [{
"labels": {
"format": "{value:%d-%m-%Y}"
},
"type": "datetime",
"title": {
"text": "Datum"
}
}],
"series": [{
"type": 'column',
"data": [
[1505088000000, 0],
[1505001600000, 0],
[1504915200000, 0],
[1504828800000, 0],
[1504742400000, 0],
[1504656000000, 0],
[1504569600000, 149],
[1504483200000, 302],
[1504396800000, 301],
[1504310400000, 301],
[1504224000000, 301],
[1504137600000, 299],
[1504051200000, 283],
[1503964800000, 67],
[1503878400000, 0],
[1503792000000, 0],
[1503705600000, 0],
[1503619200000, 31],
[1503532800000, 100],
[1503446400000, 100],
[1503273600000, 101],
[1503014400000, 94],
[1502928000000, 101],
[1502841600000, 114],
[1502668800000, 187],
[1502409600000, 80],
[1502236800000, 56],
[1502150400000, 46],
[1502064000000, 46],
[1501977600000, 45]
],
"name": "Prosječna snaga (MW)",
"_colorIndex": 0,
"_symbolIndex": 0,
"type": "column",
"color": null,
"negativeColor": "",
"marker": {
"enabled": false
}
}],
"credits": {
"enabled": false
},
"legend": {
"enabled": false,
"layout": "horizontal"
}
});
My solution on jsfiddle is here.
Example of responsive column width on jsfiddle is here.

Answer 1

I find that with a column chart, and a datetime axis, you need to specify a pointRange.
Since your data appears to be daily data, you can add a point range of one day (adjust as required):
pointRange: 86400000
This will make each column take up one day's worth of space on the x axis.
Fiddle:
http://jsfiddle.net/k715f003/5/
Reference:
http://api.highcharts.com/highcharts/plotOptions.column.pointRange