Div + css: Benefits for website optimization and seo

More and more people are using CSS + DIV to build websites. Today we will talk about how to use div + css to optimize websites and improve seo:
I. When using css + div, we have to give up some of the previous table formatting habits, including the page format habits:
1. Previously, table layout was used. Generally, irregular background images were used to apply irregular effects across cells. Css + div is characterized by separation of formats and styles.
2. It is better to use css + div to exercise the layout of blocks. The page is simple, intuitive, and not so fancy. The source code structure is also simple, and the page execution efficiency is high.
3. Use div nesting as little as possible to reduce redundant code such as line breaks and improve webpage loading speed.
2. The website structure of Div + css plays an increasingly significant role in seo website optimization.
The most popular keyword websites currently ranked in the rankings are mostly div + css. Why is DIV + CSS more advantageous for ranking or seo?
1. after using this structure, the HTML page basically only contains text or image information, while the style is placed in CSS, so that the search crawler will not care about CSS, as long as the HTML content is collected, this greatly improves the efficiency of crawlers.
2. This structure is often used with more concentrated keywords and higher density.
3. DIV + CSS is simpler than table, and there is basically no "table nesting" that has always been mentioned on the Internet.
4. Web pages that comply with W3C standards have their own advantages in seo optimization and are more favored by search engine spider.
These are my personal opinions. If you have any questions or suggestions, please contact me.