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The characteristics of inline elements are: 1. Layout in sequence according to direction in the horizontal direction; 2. No line breaks before and after the element; 3. Controlled by white-space; 4. Margin/padding is invalid in the vertical direction. , valid in the horizontal direction.
For beginners like me, I may often not be able to tell the difference between block elements and inline and the difference between them at first.
However, block elements are relatively easy to understand, but for inline elements, there are some things that need to be paid attention to.
Characteristics of inline elements:
Layout in sequence according to direction in the horizontal direction.
No line breaks before and after the element
Controlled by white-space.
margin/padding is invalid in the vertical direction and valid in the horizontal direction.
The width/height attribute is invalid for non-replaced inline elements, and the width is determined by the element content.
The line box height of non-replaced inline elements is determined by line-height, and the line box height of replaced inline elements is determined by height, margin, padding, and border.
vertical-align attribute takes effect.
Inline elements have another important feature besides the above:
will be converted to block when floating (float) or absolutely positioned (position: absolute)
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<style> a{background:red; height:50px; width:50px;} </style>
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