Learn more about the characteristics and differences between block-level elements and inline elements

To understand the characteristics and differences between block-level elements and inline elements, you need specific code examples

In HTML and CSS, elements are divided into two types: block block-level elements and inline elements. They have different performances and characteristics in typesetting and layout. An in-depth understanding of the characteristics and differences between block-level elements and inline elements is very important for developing and designing the layout and style of web pages.

1. Block-level elements
Block-level elements are called block elements, and their characteristics are as follows:

1. Occupy an independent line:
   A block-level element will occupy its own line, and its width defaults to 100% of the content area of ​​the parent element, which automatically fills the remaining available width.
2. Default width:
   The default width of a block-level element is 100% of its parent element.
3. You can set properties such as width, height, internal and external margins:
   Block-level elements can set properties such as width, height, internal and external margins, etc., and can be a container to contain other elements.
4. Vertical arrangement:
   Block-level elements will be arranged vertically from top to bottom.

Some common block-level elements include: div, p, h1-h6, ul, li, table, etc.

Code example:

<div>
  <p>这是一个块级元素。</p>
  <p>这是另一个块级元素。</p>
</div>

2. Inline elements
Inline elements (inline elements) are also called inline elements, and their characteristics are as follows:

1. Do not occupy an independent line:
   Inline elements will not occupy an exclusive line, they will be arranged according to the size of their own content.
2. The default width is the width of the content:
   The default width of an inline element is the width of its content. Properties such as width, height, and margins cannot be set.
3. There will be no vertical arrangement:
   Inline elements will be arranged horizontally from left to right. If a row cannot fit, it will automatically wrap and display.

Some common inline elements include: span, strong, em, a, img, etc.

Code example:

<p>这是一个行内元素，<span>这是一个行内元素的内部内容</span>，继续行内元素。</p>

3. The difference between block-level elements and inline elements
The layout and style of block-level elements and inline elements have the following differences:

1. Block-level elements occupy independent lines, and inline elements do not occupy independent lines.
2. Block-level elements can set attributes such as width, height, and inner and outer margins, while inline elements cannot set attributes such as width, height, and outer margins.
3. The default width of block-level elements is 100% of the parent element, and the default width of inline elements is the width of the content.
4. Block-level elements can contain other elements, and inline elements can only contain text or other inline elements.
5. Block-level elements are arranged vertically, and inline elements are arranged horizontally.

In actual development, we often use block-level elements to lay out the structure of web pages, and use inline elements to set the style of text and the effect of links. By rationally using the characteristics and differences between block-level elements and inline elements, you can better control the layout and style of the web page.

The above is an in-depth understanding of the characteristics and differences between block-level elements and inline elements, with specific code examples attached. I hope it will be helpful for everyone to understand and apply these two element types.

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