Separating the primary from the secondary is one of the basic principles of design. A good layout first focuses on the main thing, and then reveals the secondary. Without emphasizing the primary, the design is boring and impersonal, and often even useless.
Emphasizing the main thing works not only for the whole layout but also for each of its components, like modules and cards. The same principle applies to them: emphasize the main thing by directing the focus to it, and then show secondary.
There's nothing more boring than repetitive blocks in a layout. It makes the design look impersonal and monotonous. The user simply scrolls through the page without stopping at anything. Variety of content and change of rhythm is one of the important rules of design. Rhythm creates music, the design becomes engaging and the content is something you want to read, look at, and notice the details.
Lines of force are a good way to build a solid and eye-catching layout that is based on vertical points of attraction. It can be several lines or even just one.
The easiest way to achieve a solid design and get a great result is in four steps:
The first step is to understand what kind of content you're working with, what text, images and other components there are.
The second is to emphasize the primary and secondary, to separate the text with headings. Understand what blocks the content can be divided into and what relationships are formed.
The third step is to create a layout that reflects the idea and best represents the content and its structure. The way the design should work.
And finally, the fourth step: design, style, color and other visual details. The way the design should look.