Unity in design is also called proximity. Unity provides cohesiveness to your designs. It is what pulls the elements together. Elements that are positioned close to one another are related while elements that are farther apart are less related.
Unity looks at how close or far apart various elements on the page are to one another. The closer two elements are, the stronger the relationship is between the two elements.
Using the design principle of unity, you can assign your content into logical groups that make it easier for your readers to navigate through your designs.
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