top property
dynamic
top
getter/setter pair
The top position of the Y axis. If it's a number, it is interpreted as pixel position relative to the chart.
Since Highcharts 2: If it's a percentage string, it is interpreted as percentages of the plot height, offset from plot area top.
API Docs: https://api.highcharts.com/highcharts/chart.parallelAxes.top
Implementation
dynamic top;