CSS block-level elements, inline elements

Tell me about the arrangement of HTML page elements:

All the elements in the HTML are arranged from top to bottom, so CSS is needed to sort, adjust, and add interactive effects to the elements.

CSS is sorted and positioned relative to block-level elements, and margin/padding/width/height is also relative to block-level elements, so the inline elements must be made into block-level elements.

Use CSS properties: display:block;, you can implement this requirement.

Common block-level elements are: H1~h6, P, DIV, UL, table, common inline elements are: span, a, input, select, and so on.

Common settings: Ul{display:block;float:left;clear:both;}

CSS block-level elements, inline elements