Advantages and Disadvantages of CSS Web Page Layout

Regarding CSS web page layout, with the popularization of the WEB2.0 standardized design concept, many large domestic portals have adopted the DIV+CSS production method. From the actual application situation, this method is definitely better than the table production method.
Nowadays, most websites still use tables and nested content to create websites. Although this method is familiar and easy to use for us, it hinders a better, more friendly, and more flexible one. , and a more powerful website design method-DIV+CSS.
　
The advantages of CSS web page layout are reflected in the following aspects:

1. Make the page load faster
　Since most of the page code is written in CSS, the page volume and capacity become smaller. Compared with the table nesting method, DIV+CSS separates the page into more areas, which are loaded layer by layer when the page is opened. Instead of enclosing the entire page in a large table like table nesting, the loading speed is very slow.

2. Reduce traffic costs
　The page size becomes smaller and the browsing speed becomes faster, which is the biggest advantage for some websites that control host traffic.

3. More efficient when modifying the design
Due to the use of DIV+CSS production method, it is easier to save time when modifying the page. According to the regional content tag, find the corresponding ID in CSS, which makes it more convenient to modify the page without destroying the layout style of other parts of the page.

4. Maintain visual consistency
One of the most important advantages of DIV+CSS: maintain visual consistency; in the past, the nested table production method will cause the display effect between pages, or between regions to be different. There is a deviation. Using the DIV+CSS production method, all pages or all areas are uniformly controlled by CSS files, which avoids effect deviations reflected in different areas or different pages.

5. Better indexed by search engines
Since most of the HTML code and content styles are written into CSS files, this makes the text part of the web page more prominent and easier to be indexed by search engines.

6. More friendly to viewers and browsers
We all know that websites are made for viewers and are more friendly to viewers and browsers. DIV+CSS has more advantages in this regard. Because CSS is rich in styles, it makes the page more flexible. It can achieve unified and non-deformed display effects according to different browsers.

Having said so much about the significance and advantages of CSS web page layout, we cannot underestimate the disadvantages of CSS web page layout:

1. Although DIV+CSS is not out of reach, it is at least much more complicated than table positioning, even for websites Design experts are prone to problems, let alone beginners.

2. The design elements of CSS website production are usually placed in one external file, or several files, which may be quite complex or even large. If the CSS file is called abnormally, the entire website will become terrible.

3. Although DIV+CSS solves most browser compatibility issues, there are also exceptions when used in some browsers. For example, Firefox displays a normal page in IE, but it may be completely unrecognizable in Firefox. . Of course, this should be a browser problem, but it can be said that at present, DIV+CSS has not yet achieved unified compatibility with all browsers.

4. Whether DIV+CSS is optimized for search engines depends on the professional level of web design, not DIV+CSS itself. DIV+CSS web design does not guarantee that the web page will be optimized for search engines. It does not even guarantee that it will have a simpler code design than the HTML website. Moreover, the inclusion and sorting of web pages by search engines is obviously not measured by whether tables and CSS positioning are used. This is why many websites made with traditional table layouts rank high in search results, while many web pages made using CSS and web standards still rank low. Because for search engines, factors such as website structure, content, and related website links are always the most important indicators for website optimization.

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