Horizontal lines also work well to separate areas of your documents such as chapters, ... click the "Shape Outline" button to pick a new color for the horizontal line instead of Word's default black.

Grid lines add horizontal and/or vertical lines to your graph that aid in measuring graph values. By default, these grid lines use the color assigned to the "automatic" selection feature, whi.

In this post, we show you how to insert a Horizontal Line in Outlook across the entire page cell or column. It is used as a separator for long email messages.