In modern website development, DIV+CSS layout has become the mainstream. It replaces the traditional Table layout, making the web page structure clearer and more flexible, and helping SEO optimization and improving website performance.

What is DIV+CSS layout?

DIV+CSS layout refers to using the <div> tag in HTML code to define the structure of the web page, and controlling the appearance and layout of the web page through CSS (Cascading Style Sheets).

DIV (container): used to organize and wrap HTML content, similar to the "box" structure.

CSS (style): used to define layout, color, font, animation, etc., to make the web page more beautiful and flexible.

Compared with the traditional Table layout, using DIV+CSS to layout the website has the following advantages:

1. Clear code structure

Use <div> with semantic tags such as <header>, <nav>, <section>, <article>, etc. to improve search engines' understanding of page content.

Table layout requires a lot of nesting of <table>, <tr>, <td>, which makes the code bloated, while DIV+CSS can reduce nesting and improve code readability.

2. Improve page loading speed

DIV structure is more concise than Table structure, reducing page size and speeding up parsing.

CSS code can be stored in external files, reducing HTML page size and improving loading speed.

3. Convenient maintenance and modification

CSS controls style, HTML is responsible for content, and modifying style only requires adjusting CSS file without affecting HTML structure. The whole site style can be controlled by one CSS file to avoid modifying multiple pages.

4. Responsive design

With mediaqueries, it can adapt to different screens (PC, tablet, mobile phone) and achieve adaptive layout. And using CSS layout methods such as flexbox and grid, the page structure can be adjusted more flexibly.

5. Better compatibility

DIV+CSS layout complies with W3C standards and is compatible with mainstream browsers, while table layout has poor support on mobile terminals and modern browsers.

6. Improve user experience

DIV+CSS can load content asynchronously to avoid the problem of the entire table being stuck when loading. CSS3 provides transition, animation, etc. to enhance the interactive experience.

If you want to build a website, it is recommended to use DIV+CSS with HTML5 and CSS3, combined with flexbox or grid to achieve efficient layout!