This is an introductory tutorial on HTML5. In order to allow more beginners to find the right direction, this article is all about how beginners can learn HTML5 systematically.
1. What is an HTML file?
The full English name of TML is Hypertext Marked Language, and the Chinese name is "Hypertext Markup Language".
The difference from ordinary text is that an HTML file not only contains text content, but also contains some Tags, which are called "tags" in Chinese.
The suffix of an HTML file is .htm or .html.
You can write HTML files using a text editor.
2. Write an HTML file
The full English name of TML is Hypertext Marked Language, and the Chinese name is "Hypertext Markup Language".
The difference from ordinary text is that an HTML file not only contains text content, but also contains some Tags, which are called "tags" in Chinese.
The suffix of an HTML file is .htm or .html.
You can write HTML files using a text editor.
<html>
<head>
<title>PHP中文网</title>
</head>
<body>
This is my first homepage.<b>This text is bold</b>
</body>
</html>
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To view the first.html file, double-click it. Or open the browser, select Open from the File menu, and then select the file.
The first Tag of this file is . This Tag tells your browser that this is the header of the HTML file. The last Tag of the file is , indicating that the HTML file ends here.
The content between
and is Head information. Head information is not displayed and you cannot see it in the browser. But that doesn't mean the information isn't useful. For example, you can add some keywords to the Head information to help search engines search for your web page.
The content between
and is the title of this file. You can see this title in the title bar at the top of your browser.
The information between
and is the main text.
The text between and is in bold. As the name suggests, it means bold.
HTML files look similar to ordinary text, but they have more tags than ordinary text, such as , , etc. Through these tags, you can tell the browser how to display this file.
HTML Elements
HTML Elements are used to mark text and represent the content of the text. For example, body, p, and title are HTML elements.
HTML elements are represented by Tag, which starts with < and ends with >.
Tag usually appears in pairs, such as
. The starting one is called Opening Tag, and the ending one is called Closing Tag.
Currently, HTML Tags are not case-sensitive. For example, and are actually the same.
Attributes of HTML Elements
HTML elements can have attributes. Attributes extend the capabilities of HTML elements.
For example, you can use a bgcolor attribute to make the background color of the page red, like this:
Another example , you can use the border attribute to set a table to a borderless table. As follows:
Attributes usually appear in pairs of attribute name and value, like this: name="value". In the above example, bgcolor and border are name, red and 0 are value. Attribute values are generally marked with double quotes. The attribute is usually attached to HTML's Opening Tag, not the Closing Tag.
Text title
This example shows you how to define the text title in an HTML file.
HTML uses tags from
to
to define the text title, from large to small. Each text title is its own paragraph.
<h1>This is a heading</h1>
<h2>This is a heading</h2>
<h3>This is a heading</h3>
<h4>This is a heading</h4>
<h5>This is a heading</h5>
<h6>This is a heading</h6>
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Paragraph division
Use
and
to divide paragraphs in HTML.
<p>This is a paragraph</p>
<p>This is another paragraph</p>
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Line break
By using the tag, you can wrap the line without creating a new paragraph. No Closing Tag. It is a bad habit to use
for line breaks. The correct thing is to use .
This is a para graph with line breaks
HTML comments
In HTML In the file, you can write code comments to explain your code, which will help you and others better understand your code in the future.
Comments can be written between . Browsers ignore comments, and you won't see your comments in the HTML body.
<!--This is a comment -->
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Some tips
HTML files will automatically cut off extra spaces. No matter how many spaces you add, they are all counted as one space. A blank line is also considered a space.
Some Tags can separate the text into a paragraph without using
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