Div CSS structure advantages_html/css_WEB-ITnose

The history of the website has been for many years. So far, it is well known that the most popular website code structure is DIV CSS, but why is DIV CSS so popular? What are the benefits? Today Tianzong website optimization is Let’s talk to you about the help of CSS for search engine optimization.
　
First of all, what you need to know is that CSS can make your website code structure clear and not nested, making it more friendly to search engines. The website’s reasonable use of CSS can make search engine spiders (such as Baidu Spider) ) makes your site more readable and easier to index.
　
To give a very simple example, there is a picture on your website. Although the search engine spiders (refer to what Baidu spiders are) are very smart, they still cannot understand the picture in the text. This When search engines crawl your website, they will encounter obstacles and see this picture and wonder what it is. However, we can completely use CSS to control this image as a background display, so that the image does not appear in the page code, but it can be displayed normally when users browse the page.
　
Another point is that many of our pictures with text should be reduced as much as possible, and the background and text of the picture should be separated. The background is controlled with CSS, and the text is written directly in the code, so that the appearance can be preserved. It is also very friendly to search engine spiders. Obviously, direct text is more conducive to search engine optimization than adding ALT attributes to images, because search engines cannot judge that your ALT text is completely related to the image. Therefore, text has higher trust in search engines than images and ALT attributes.
　
　 Below I list several common situations in which search optimization is not used for reference:
　
　 1. Website navigation uses images (solution: use CSS to control the display background and use text Connection. )
　
　 2. Use a large number of table layouts (Solution: website reconstruction and revision, it is recommended to use DIV CSS layout, because the structure is clear and the code is streamlined.)
　
　 3. The website uses a lot of FLASH (Solution: Try to minimize the use, but some websites must use it, please use GOOGLE's swfobject tool to add appropriate text. It is a bit like ALT, the address of swfobject: http://code.google.com/p/swfobject/)
　
　 4. Website pages use CSS and JAVASCRIPT codes (solution: use connections in the header to call external CSS files and JS files)
　
　 The article comes from Tianjin SEO: http://blog. tianya.cn/blogger/post_show.asp?idWriter=22046825&Key=504767210&BlogID=3032102&PostID=24954744