Whitespace allows your designs to breathe and increases readability.
Whitespace (negative space) provides rhythm, unity, legibility, readability and balance to your composition regardless of your medium. Whitespace does not have to be white. The term of whitespace comes from graphic design printing processes, which generally use white paper. It is an important element of design. The contrast between positive/negative space is crucial to aesthetic composition.
Taking it to the web
In web design, it's the space between graphics, columns, images, text, margins and other elements. In my opinion, web design is all about white space, so you must master be as soon as possible. It makes the difference between good and bad web design. Using whitespace means having a good eye for composition. It makes the information that you are presenting readable/legible.
Use Whitespace
Whitespace is your best friend. Whitespace helps to balance the layout and emphasize objects. It brings focus to certain objects or pictures. The trick to whitespace is taking away all of the elements that you want to include and then bringing back the bare minimum.