Use the Spacing element to add blank space above or below another element.
After adding a Spacing element, drag the slider to adjust the size of blank space that you are adding. You can also insert the exact size (in pixels) that the Spacing element should be.
The default size of a Spacing element is 50 pixels. That's the distance between this yellow box and the sentence above it.
Using Spacing elements to separate the Elements on your page gives your website a more clean look.