I have a Plotly.JS heatmap that's working great and I have some descriptive text I want to put above it in a separate div, however the gap looks a bit awkward. Somehow I am struggling to reduce the padding so that my text (e.g., My description) and the heatmap and closer together. I tried using CSS, but I am clearly off. I'm sure this is an easy answer and that I'm overlooking something simple. Any help is appreciated.
Codepen: https://codepen.io/tenebris_silentio/pen/eYzgZMw
<!DOCTYPE html>
<head>
<!-- Load plotly.js into the DOM -->
<script src='https://cdn.plot.ly/plotly-latest.min.js'></script>
</head>
<br>
My description.
<div id='myDiv'><br> </div>
</div>
</div><script>
var colorscaleValue = [
[0, '#ADD8E6'],
[1, '#000080']
];
var data = [
{
z: [[41, 60, 25, 24, 28], [56, 27, 14, 45, 17], [47, 17, 12, 47, 17]],
x: ['Geographical', 'Temporal', 'Cultural', 'Digital', 'Financial'],
y: ['Category 1', 'Category 2', 'Category 3'],
colorscale: colorscaleValue,
type: 'heatmap',
hovertemplate: '<b># of %{y} Projects with a %{x} classification</b>: %{z}' + '<extra></extra>',
hoverongaps: true
}
];
var layout = {
title: '',
width: 900,
height: 560,
autosize: false,
yaxis: {automargin: true}
};
Plotly.newPlot('myDiv', data, layout);
</script><!-- Plotly chart will be drawn inside this DIV --></div></div></div>
<style>
.myDiv{
padding: -1px;
}
</style>
You can use the margin configuration in your layout: