Things to note about html standards that comply with w3c standards_html/css

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Things to note about html standards that comply with w3c standards_html/css_WEB-ITnose

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Jun 24, 2016 am 11:50 AM

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>html标准源代码-html标准主要注意重点</title> <meta name="keywords" content="关键字" /> </head> <body> 第一行<br /> 第二行 <p>第二段</p> <p>第三段</p> </body> </html>

　△Standard html source code that conforms to w3c

　Things to note about html standards that conform to w3c standards

1. First, DOCTYPE declaration

2. End with and

3. Pay attention to a pair of combined tags such as

, <p> Common pair of combined tags include div, p, title, head, html, table, tr, td, span, style, b, strong, ul , ol, li, dl combination (dl, dt, dd), body </p> <p> 4. Individual tags such as line break tags br and other tags should be represented by <br> tags </p> <p> Individual tags include br, meta, link </p> <p> 5. Tag names should be in half-width English lowercase as much as possible, such as </p> <div>, and try to use full-width uppercase letters as little as possible, such as <div> <p> According to HTML standards, web standards, and w3c standards all need to follow the above points to comply with the standards. </p> <p> How do you know when you need a pair of tags and when you need a separate tag? You need to pay more attention to this when developing div css, and you can use Dreamweaver software to make a simple judgment. </p> <p> The method of using Dreamweaver to judge tags is as follows </p> <p> You can do it by handwriting the code in "Code" in Dreamweaver software. Generally, when Dreamweaver software ends a tag with ">", if If it is a single type tag, Dreamweaver software will automatically convert it to "/>" such as "<br>". If it corresponds to a pair of type tags, it will not convert the ">" tag and the ">" tag will be displayed. It will not change to "/>". At this time, you need to end the tag with "" plus the tag name plus ">". For example, "</p> <div>" must end with "< ;/div>" ends. <p class="sycode"></p> <p class="sycode"></p> <p class="sycode"> </p> <p class="sycode"></p> <p class="sycode"></p> <p class="sycode"> </p> <p class="sycode"></p> <p class="sycode"></p> </div> </div> </div>

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