What does fixed positioning do?

The functions of fixed positioning include creating fixed navigation bars, floating prompt boxes, fixed advertising positions, return to top buttons, fixed headers and columns, and creating floating menus, etc. Detailed introduction: 1. Create a fixed navigation bar. Fixed positioning is often used to create a fixed navigation bar. By setting the navigation bar to fixed positioning, the navigation bar can always remain at the top or bottom of the page and will not change as the page scrolls. Position; 2. Implement a floating prompt box. Fixed positioning can be used to create a floating prompt box. By setting the prompt box to a fixed position, the prompt box can always remain on the page, etc.

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

Fixed Positioning (Fixed Positioning) is a CSS positioning method that allows elements to be fixed at a specific position on the page relative to the viewport and not change position as the page scrolls. Fixed positioning has many functions in web development, mainly including the following aspects:

1. Create a fixed navigation bar: Fixed positioning is often used to create a fixed navigation bar. By setting the navigation bar to fixed positioning, you can keep the navigation bar at the top or bottom of the page and not change position as the page scrolls. In this way, users can easily access navigation functions when browsing pages, improving user experience.

2. Implement a floating prompt box: Fixed positioning can be used to create a floating prompt box. By setting the prompt box to fixed positioning, you can keep the prompt box at a specific position on the page and not change its position as the page scrolls. In this way, when it is necessary to provide tips, guidance or important information to the user, the prompt box is always visible, improving the user's operating efficiency and experience.

3. Fixed advertising position: Fixed positioning is often used to fix the position of advertising. By setting your ad to fixed positioning, you can keep your ad at a specific location on the page and not change position as the page scrolls. In this way, advertisers can ensure that their ads are always visible, increasing their exposure and click-through rates.

4. Create a return to top button: Fixed positioning can be used to create a return to top button. By setting the back-to-top button to fixed positioning, you can keep the button always in a corner of the page and not change position as the page scrolls. In this way, users can click the button to return to the top of the page at any time, improving the usability and user experience of the page.

5. Fixed header and columns: Fixed positioning can be used to fix the header and columns of the table. By setting the table header and columns to fixed positioning, you can make them remain fixed when the table content is scrolled and do not change position as the table content is scrolled. In this way, users can always know the identifiers of table headers and columns when viewing large amounts of data, improving the readability and navigation of the table.

6. Create a floating menu: Fixed positioning can be used to create a floating menu. By setting the menu to fixed positioning, you can keep the menu at a specific location on the page and not change position as the page scrolls. This way, users can access the menu at any time for easy navigation and operation.

In summary, fixed positioning is a very practical CSS positioning method. It can fix elements at a specific position on the page and is not affected by page scrolling. Fixed positioning has many functions in web development, including creating fixed navigation bars, floating prompt boxes, fixed advertising positions, return to top buttons, fixed headers and columns, and creating floating menus, etc. By rationally using fixed positioning, you can improve user experience and enhance the navigation and interactivity of web pages.

The above is the detailed content of What does fixed positioning do?. For more information, please follow other related articles on the PHP Chinese website!