Currently, I am attempting to construct a callout, and I aim to format the callouts using CSS. Unfortunately, the CSS implementation seems to be malfunctioning for some unknown reason.
Below is the HTML:
<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/modules/exporting.js"></script>
<div id="container" style="min-width: 310px; height: 400px; margin: 0 auto"></div>
CSS Implementation:
div.callout {
height: 20px;
width: 100px;
/*float: left;*/
z-index: 1;
}
div.callout {
background-color: #444;
background-image: -moz-linear-gradient(top, #444, #444);
position: relative;
color: #ccc;
padding: 10px;
border-radius: 3px;
box-shadow: 0px 0px 20px #999;
margin: 25px;
min-height: 20px;
border: 1px solid #333;
text-shadow: 0 0 1px #000;
/*box-shadow: 0 1px 0 rgba(255, 255, 255, 0.2) inset;*/
}
.callout::before {
content: "";
width: 0px;
height: 0px;
border: 0.8em solid transparent;
position: absolute;
}
.callout.top::before {
left: 45%;
bottom: -20px;
border-top: 11px solid #444;
}
.callout.bottom::before {
left: 45%;
top: -20px;
border-bottom: 10px solid #444;
}
.callout.left::before {
right: -20px;
top: 40%;
border-left: 10px solid #444;
}
.callout.right::before {
left: -20px;
top: 40%;
border-right: 10px solid #444;
}
.callout.top-left::before {
left: 7px;
bottom: -20px;
border-top: 10px solid #444;
}
.callout.top-right::before {
right: 7px;
bottom: -20px;
border-top: 10px solid #444;
}
Below is the JS code:
$(function () {
$('#container').highcharts({
title: {
text: 'Monthly Average Temperature',
x: -20 //center
},
subtitle: {
text: 'Source: WorldClimate.com',
x: -20
},
xAxis: {
categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
},
yAxis: {
title: {
text: 'Temperature (°C)'
},
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}]
},
tooltip: {
valueSuffix: '°C'
},
legend: {
layout: 'vertical',
align: 'right',
verticalAlign: 'middle',
borderWidth: 0
},
series: [{
name: 'Tokyo',
data: [7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2, 26.5, 23.3, 18.3, 13.9, 9.6],
dataLabels: {
enabled: true,
align: 'left',
crop: false,
style: {
fontWeight: 'bold'
},
x: 3,
verticalAlign: 'middle',
formatter: function() {
return '<div class="callout" data-name="Jane">This is a test message</div>';
}
},
}, {
name: 'New York',
data: [-0.2, 0.8, 5.7, 11.3, 17.0, 22.0, 24.8, 24.1, 20.1, 14.1, 8.6, 2.5]
}, {
name: 'Berlin',
data: [-0.9, 0.6, 3.5, 8.4, 13.5, 17.0, 18.6, 17.9, 14.3, 9.0, 3.9, 1.0]
}, {
name: 'London',
data: [3.9, 4.2, 5.7, 8.5, 11.9, 15.2, 17.0, 16.6, 14.2, 10.3, 6.6, 4.8]
}]
});
});
Access the demonstration on JSFiddle: http://jsfiddle.net/n0axohL6/1/