What are the disadvantages of absolute positioning?

The disadvantages of absolute positioning are separation from document flow, impact on page responsiveness, poor maintainability, impact on accessibility, impact on SEO, and element overlap issues, etc. Detailed introduction: 1. Breaking away from the document flow. Elements using absolute positioning will break away from the document flow and no longer occupy their original positions. This means that other elements will no longer consider the existence of this absolutely positioned element, which may cause confusion in the page layout; 2. Impact on page responsiveness. Since absolutely positioned elements no longer occupy their original positions, when the page size changes, absolutely positioned elements may exceed the page, etc.

The operating system for this tutorial: Windows 10 system, DELL G3 computer.

Absolute positioning is a commonly used positioning method in CSS, which can position an element relative to its nearest positioned ancestor element. Although absolute positioning has some advantages, there are also some disadvantages. Below I will introduce several common disadvantages of absolute positioning:

1. Detaching from the document flow:

Elements using absolute positioning will break away from the document flow and no longer occupy their original position. This means that other elements will no longer consider the existence of this absolutely positioned element, which may lead to confusing page layout. When the size of an absolutely positioned element changes, the surrounding elements will not automatically adjust their positions and the layout will need to be adjusted manually.

2. Impact on page responsiveness:

Since absolutely positioned elements no longer occupy their original positions, when the page size changes, absolutely positioned elements may exceed the page or be blocked. Occlusion. This is a challenge for responsive design and requires additional tweaking and processing to ensure that the page displays properly on different devices and sizes.

3. Poor maintainability:

Using absolutely positioned elements often requires manual specification of position and size, which makes the code less maintainable. If you need to adjust the position or size of an element, you may need to modify the code in multiple places, increasing the code complexity and maintenance costs.

4. Impact on accessibility:

Absolutely positioned elements will not be rendered in the normal document flow order, which may have an impact on accessibility. Assistive technologies such as screen readers may not correctly interpret absolutely positioned elements, impacting the experience for visually impaired users.

5. Impact on SEO:

Search engine optimization (SEO) is an important task to improve the ranking of a website in search engines. The position of absolutely positioned elements on the page is no longer considered by search engines, which may affect search engines' understanding and ranking of the page. Therefore, absolute positioning needs to be used with caution when designing and developing websites to avoid negative impacts on SEO.

6. Element overlapping problem:

When using absolute positioning, if multiple elements overlap, some elements may be blocked, preventing users from interacting with the page correctly. In this case, you need to solve the problem of overlapping elements by adjusting the hierarchical relationship of the elements or using other positioning methods.

To sum up, absolute positioning, as a positioning method in CSS, has some shortcomings. It may lead to confusing page layout, impact on page responsiveness, poor maintainability, impact on accessibility and SEO, and possible overlapping of elements. When using absolute positioning, you need to weigh the pros and cons and choose the appropriate positioning method according to the specific situation to ensure the normal display of the page and a good user experience.

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