This is a demo tutorial. While there is no step-by-step commentary available (yet), the live demo below is fully functional. Feel free to open it for full source code.
This demo shows how we adapters to position X axis labels under base (zero) line, rather than fixed at the bottom of the plot area.
See the Pen
Showing axis label near 0 line by amCharts team (@amcharts)
on CodePen.0