Rulers allow you to quickly and accurately adjust indents and margins of your document both horizontally and vertically. You can find the horizontal ruler under the Toolbar and the vertical ruler along the left edge of the document. By default, both rulers are displayed.
If you want to hide the rulers or display previously hidden rulers, do one of the following:
–On the View tab, clear or select the Ruler checkbox.
–When working in macOS, in the View command menu, clear or select the Ruler checkbox.
–Press Ctrl+Shift+R (Windows, Linux) or ⇧Shift+⌘Cmd+R (macOS).