Chartjs-Add bar chart in a column

1. it seems that the pink area is larger than any of those boxes inside it. May be you should change col-9 col-3 to col-10 col-2
2. you can create a css class exactly as the one you inspect on the Google dev console and add only position:relative !important inside it
3. you can decrease the margins in the child-div and make relative widths with percentages instead of pixels

These are the first solutions that I can suggest. But I’m not a front-end developer! I think there will be much better solutions.