Keynote User Guide for Mac
- Welcome
- What’s new
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- Change object transparency
- Fill shapes and text boxes with color or an image
- Add a border to an object
- Add a caption or title
- Add a reflection or shadow
- Use object styles
- Resize, rotate, and flip objects
- Move and edit objects using the object list
- Add linked objects to make your presentation interactive
 
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        - Send a presentation
- Intro to collaboration
- Invite others to collaborate
- Collaborate on a shared presentation
- See the latest activity in a shared presentation
- Change a shared presentation’s settings
- Stop sharing a presentation
- Shared folders and collaboration
- Use Box to collaborate
- Create an animated GIF
- Post your presentation in a blog
 
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        - Use iCloud Drive with Keynote
- Export to PowerPoint or another file format
- Reduce the presentation file size
- Save a large presentation as a package file
- Restore an earlier version of a presentation
- Move a presentation
- Delete a presentation
- Password-protect a presentation
- Lock a presentation
- Create and manage custom themes
 
- Copyright

Add borders and rules (lines) to separate text in Keynote on Mac
You can add a solid, dashed, or dotted rule (line) above or below a paragraph in a text box or shape.
Note: If the text is in a table cell, you can add a border around the cell. See Change the border and background of table cells.

- Go to the Keynote app  on your Mac. on your Mac.
- Open a presentation, then select the text where you want to add the border or rule. 
- In the Format  sidebar, click the Text tab, then click the Layout button near the top. sidebar, click the Text tab, then click the Layout button near the top.
- Click the pop-up menu in the Paragraph Borders controls, then choose a line style. - A rule appears above each paragraph you selected. 
- Do any of the following:  - Add one or more lines: Click one or more position buttons (below the line style pop-up menu and color well). 
- Choose a color that goes with your theme: Click the color well to the left of the color wheel, then choose a color. 
- Choose any color: Click the color wheel, then choose a color in the Colors window. 
- Change the line thickness: Click the arrows for the value field next to the line color controls. 
- Change the amount of space between the line or border and the text: Click the Border Offset arrows. 
 
To quickly remove the border or rule, select the text that has the border or rule, click the pop-up menu below Paragraph Borders, then choose None.