[Solved]-Overflow a circle outside the bounds-d3.js

They're getting clipped out.

Try removing the clip-path on elements with the c3.chart class:

  d3.selectAll(".c3-chart").attr("clip-path", null);

https://jsfiddle.net/xzsq4t1z/70/

This may mean you get other things coming out of the clip bounds too, but I couldn't see anything on a quick look