Resizing a chart to fit in a smaller area

[tjv255]

Hello.
So we I am having trouble getting my chart to shrink down to fit into a smaller container. I restyled all the text fields and icons, but I can't seem to find a way to change these margins. There's one on the left, and one above the chart that I am having trouble finding how to change.

Here is what my chart currently looks like:

Here is what I want my chart to look like:

If anyone knows how to work with this, your help will be appreciated.

Thanks.