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The source code of the specification html suitable for W3C is as follows

Html standard source code-Line 1 and Line 2 of css5.com.cn

The second paragraph

The third paragraph

The center of important preferences of the html specification in accordance with the W3C standard

1. First of all, you need to DOCTYPE your name.

2. It is about to end with

3. Watch out for a pair of combinatorial labels that are about to end

Common pairs of combined tags are div, p, title, head, html, table, tr, td, span, style, b, strong, ul, ol, li, dl combination (dl, dt, dd), body

Simplify common sense: distinction between div and span, css li

4. Individual tags such as newline tags such as br should be flashed as tags.

Zero D tags include br, meta and link.

Streamlining knowledge: br and p discriminant usage

5. sign in lowercase half-width English as much as possible, for example, use as few full-width capitals as possible, such as

According to the html standard, web standard and W3C standard, it is necessary to follow the above key points to fit the standard.

How do you know when you need a pair of tags and when you need a singleton? this is an important thing for everyone to keep in mind when developing div+css, and to use Dreamweaver software to be simple and arbitrary.

Use Dreamweaver to arbitrarily label the following

Perhaps in the way of handwritten code in "code" in Dreamweaver software, it is common for Dreamweaver software to end a tag with ">". If it is a zero-D tag, the Dreamweaver software will passively convert it to "/ >" if it is assumed to be corresponding to a pair of tags. ">" tags will display the ">" tag and will not change to "/ >". At this time, you need to label it with "" at the end of the day, for example, "" is about to be finished.

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