This paper mainly introduces the problem and solution of margin boundary overlay in CSS. Has a good reference value. Let's see it together. css margin Overlay depth anatomy boundary Overlay Introduction Boundary overlay is a fairly simple concept. However, when you lay out a Web page in practice, it creates a lot of confusion. Simply put, when two vertical boundaries meet, they form a boundary. The height of this boundary is equal to the larger of the two height of the bounding boundary where the overlay occurs. When an element appears on top of another element, the bottom boundary of the first element is superimposed on the top boundary of the second element, as shown in figure: the top boundary of an element overlaps with the bottom boundary of the preceding element when one element is contained within another element (assuming no padding or border separates the boundary), the top and/ Or the bottom boundary is superimposed, as shown in figure: the top boundary of an element overlaps with the top boundary of the parent element, although it may seem strange at first, but the boundary can even overlap itself. Suppose there is an empty element that has a border, but no border or padding. In this case, the top and bottom boundaries come together, and they overlap, as shown in figure: the top and bottom boundaries of an element occur
1. Introduction to the solution of margin overlay problem in CSS (graphic)
Introduction: This paper mainly introduces the problem and solution of margin boundary overlay in CSS. Has a good reference value. Let's take a look at the little series.
2. Using the CSS margin overlay problem and solution
Introduction: This article describes the use of CSS in the margin boundary overlay problems and solutions
3. CSS margin Overlay Depth Analysis Graphic Demo _ Experience Exchange
Introduction: CSS Margin Overlay depth profiling graphic presentation
