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Most people do not understand the knowledge points of this article "what are the advantages and disadvantages of CSS Sprites", so the editor summarizes the following content, detailed content, clear steps, and has a certain reference value. I hope you can get something after reading this article. Let's take a look at this "what are the advantages and disadvantages of CSS Sprites" article.

CSS Sprites introduction

Css sprites can be translated as css genie or css Sprite, because sprite also means Sprite. In China, he is used to the technology of picture integration, which is also quite appropriate, because it is indeed the technology of integrating multiple pictures into a whole picture. Why integrate multiple pictures into one? what are the benefits of doing so? Because of this, when you visit the page, the loaded images will not be displayed as slowly as before.

CSS Sprites principle

Css sprites integrates multiple scattered background images into a background image, and then adjusts the position of the background through background-position. At this time, you must make sure that the container using the wizard image is smaller than the background image before it is OK, otherwise it is easy to leave out other background images, so it is especially important to control the size of the box. Second, you also need to note that most of the writing background positioning is negative, the horizontal is negative, the picture will translate to the left, so it will show the part of the background image you need, the same is true in the vertical direction. When multiple boxes refer to a background image, you only need to change the background location to change which part of the background image the display part of the page is. The purpose of this is to reduce the number of requests from the browser to the server. This can greatly improve the loading speed of the web page.

Advantages and disadvantages of CSS Sprites

Advantages of CSS Sprites:

1. The use of CSS Sprites can reduce the number of requests from the browser to the server, reduce http requests, and thus improve the performance of the page, which is the most prominent feature of the picture wizard, but also the main reason for its wide application.

2, the use of picture wizard can also reduce the bytes of pictures, you use 9 small pictures, a 4KB 36KB 9 is a picture, and put them all on a picture, only need to 4KB to 5KB, so reducing picture bytes is also obvious.

3. In the process of arranging pictures, there is no need to worry about the names of so many pictures, put more than one picture on one, and just take a comprehensive name, so as to improve the work efficiency.

4, if you want to change the style of the website, you only need to deal with a picture, change the color and style of a picture, then the style of the whole site will change, which is convenient for later maintenance and modification.

Disadvantages of CSS Sprites:

1. When applying genie images, you need to consider whether the current box will leak other background images, which is good, but the headache is that when the page is adaptive, the location of the background image is not so easy to control.

2, the process of making a wizard map is tedious, you need to deal with the distance and position between each picture, if it is not reasonable, then it will be more troublesome to use, and even need to create an empty box to hold the background image separately.

3. The later maintenance of the page using the wizard map brings tedious, because it is multiple pictures on one picture, which affects the whole body. You change a background picture, if the size changes, then the rest of you have to move. As long as you move, then all the background positioning will need to be changed, so once you need to change the background image, do not easily change the position of other pictures. If you can put it down in place, change it in place, and add it below if you can't put it down.

The above is about the content of this article on "what are the advantages and disadvantages of CSS Sprites". I believe we all have a certain understanding. I hope the content shared by the editor will be helpful to you. If you want to know more about the relevant knowledge, please follow the industry information channel.

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