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HTML documents are defined by HTML elements.
The HTML element refers to all the code from the start tag (start tag) to the end tag (end tag);
HTML element Syntax
HTML element starting with start tag
HTML element terminated with end tag
• The content of the element is the content between the start tag and the end tag
• Some HTML elements have blank content (empty contents)
• Empty elements are closed in the start tag (ending with the end of the start tag)
• Most HTML elements can have properties
Nested HTML elements
Most HTML elements can be nested (including other HTML elements)
HTML documents consist of nested HTML elements
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HTML document Instance
<body>
<p>this is my first paragraph.</p>
</body>
The above example contains three HTML elements.
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HTML instance Explanation
<p> Elements :
<p>this is my first paragraph.</p>
This <p> element defines a paragraph in an HTML document.
This element has a start tag <p>, and an end tag </p>.
Element contents are: This is my first paragraph.
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<body> Elements :
<body>
<p>this is my first paragraph.</p>
</body>
The <body> element defines the body of the HTML document.
This element has a start tag <body>, and an end tag </body>.
The element content is another HTML element (p element).
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elements:
<body>
<p>this is my first paragraph.</p>
</body>
The
This element has a start tag
The element content is another HTML element (the BODY element).
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An empty HTML element
HTML elements that have no content are called empty elements. The empty element is closed in the Start tab.
<br> is the empty element without closing the label (the <br> tag defines a newline).
In XHTML, XML, and future versions of HTML, all elements must be closed.
Adding slashes to the start tag, such as <br/>, is the correct way to close an empty element, which is accepted by HTML, XHTML, and XML.
Even if <br> is valid in all browsers, the use of <br/> is actually a longer term guarantee.
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HTML Hint: Use lowercase tags
Because learning Android to use XML, XML to master HTML, so, I an electrician again opened the HTML data ...
The above HTML data and the following HTML knowledge are from
Http://www.w3school.com.cn/h.asp
Thanks for all the shared learning resources on the Internet!
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