Hoiw to set Image margins in Drupal 7.59?

When I insert an image into a page, the image has no margin of white space around it to separate the image from, adjoining text. The Image properties box allows m e to select an image for insertion, or set the dimensions of the image, or align the image right left or centered. However, there is no setting for the width of a margin in pixels or inches.

I am using Drupal version 7.59 with CkEditor. Is there an additional module I should install to allow me to control the margins of an image?

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