Html <p> 是块级元素还是内联级元素？
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Is <p> a block-level or inline-level element?
提问by Andor
I had a question when I came across the HTML 4.01 DTD:
In the strict DTD, a <p>element is defined as
<!ELEMENT P - O (%inline;)* -- paragraph -->but I thought that <p>was a block-level element, and all (maybe almost all) user agents define <p>as a block-level.
当我遇到 HTML 4.01 DTD 时，我有一个问题：在严格的 DTD 中，<p>元素被定义为
<!ELEMENT P - O (%inline;)* -- paragraph -->但我认为它<p>是块级元素，并且所有（可能几乎所有）用户代理都定义<p>为块级元素。
So is <p>a block-level or inline-level element?
那么是<p>块级元素还是内联级元素？
回答by nickf
It is a block level element. What that DTD is saying is that <p>tags can only contain inline elements.
它是一个块级元素。DTD 所说的是<p>标签只能包含行内元素。
回答by Sarfraz
Of course it is.
当然是这样。
The following are defined as block-level elements in XHTML 1.0:
以下在 XHTML 1.0 中被定义为块级元素：
* address - Address
* blockquote - Block quotation
* center - Centered block
* dir - Directory list
* div - Generic block-level container
* dl - Definition list
* fieldset - Form control group
* form - Interactive form
* h1 - Level-one heading
* h2 - Level-two heading
* h3 - Level-three heading
* h4 - Level-four heading
* h5 - Level-five heading
* h6 - Level-six heading
* hr - Horizontal rule
* isindex - Input prompt
* menu - Menu list
* noframes - Frames alternate content
* noscript - Alternate script content
* ol - Ordered list
* p - Paragraph
* pre - Preformatted text
* table - Table
* ul - Unordered list
The following elements may also be considered block-level elements since they may contain block-level elements:
以下元素也可以被视为块级元素，因为它们可能包含块级元素：
* dd - Definition description
* dt - Definition term
* frameset - Frameset
* li - List item
* tbody - Table body
* td - Table data cell
* tfoot - Table foot
* th - Table header cell
* thead - Table head
* tr - Table row
The following elements may be used as either block-level elements or inline elements. If used as inline elements (e.g., within another inline element or a p), these elements should not contain any block-level elements.
以下元素可用作块级元素或行内元素。如果用作内联元素（例如，在另一个内联元素或 ap 中），这些元素不应包含任何块级元素。
* applet - Java applet
* button - Button
* del - Deleted text
* iframe - Inline frame
* ins - Inserted text
* map - Image map
* object - Object
* script - Client-side script
回答by peristilo
The p element should not contain any other block element, although it is a block element itself. If you put block elements inside a p, you will, for example, have a hard time trying to apply css rules to those block elements.
p 元素不应包含任何其他块元素，尽管它本身就是一个块元素。例如，如果您将块元素放在 ap 中，您将很难尝试将 css 规则应用于这些块元素。
回答by Chase Higgins
It is block, but like any other block element the CSS display property can make it behave in a few ways, including inline or inline-block.
它是块元素，但与任何其他块元素一样，CSS display 属性可以使其以多种方式运行，包括 inline 或 inline-block。
