@sonnyparlin,
Glad that you figured it out. Based on the JSFiddle provided by you the axis labels are not in italic font style, instead, the axis labels are rotated. You can rotate the labels to your desired angle by setting the labelAngle property as shown in the code snippet below –
axisX:{
labelAngle: 0
}
___________
Indranil Deo
Team CanvasJS