@restyl1997,
StripLines are drawn from the axis line till the opposite end of the plot-area and can’t be restricted until the dataPoint value itself.
However, you can achieve the above requirement by using dummy dataSeries of a line chart as shown in this JSFiddle.
Considering this as a duplicate of Change Height of Stripline on Axis X, hence closing the same.
—
Shashi Ranjan
Team CanvasJS