I want to draw the X-axis, i.e. a horizontal line at Y = 0, to better see where the positive and negative values of Y are.

I want something like this:

[![enter image description here](https://i.stack.imgur.com/s3bNO.png)](https://i.stack.imgur.com/s3bNO.png)

Is this possible in [Chart.js](http://www.chartjs.org/)

**EDIT 1**

I want to draw the line in the Chart object, so being able to interact with it. For example: points over the X-axis could be drawn green and points under it could be red.