To customize the layout of the Axes click on the customize button under the Axissubsection of customize layout. On clicking on customize button, you will see a window like this:
Show Label: Hide or display the Label of the Chart.
Text Color: Choose the color of the text of on the axis.
Font Size: Set the font size of the Title.
Height: Set the Height of the title bar in your tile.
Alignment: Align your title to the left, right or center.
Bold Text: Format your Title text as Bold.
Italic Text: Italicize the Title text.