How to set the background to not repeat in css

In web design, background images are a very important element that can make web pages more beautiful. However, if your background image appears multiple times in a row on a web page, the web page may appear extremely repetitive and monotonous. Therefore, when using background images, we need to pay attention to how to prevent them from recurring on the web page.

One of the easiest ways is to use the background-repeat attribute in css. This property controls how the background image is repeated in the web page. background-repeat has four available values: repeat (default), repeat-x, repeat-y, and no-repeat. Among them, repeat means that the background image repeats in both the horizontal and vertical directions; repeat-x means that the background image only repeats in the horizontal direction, not the vertical direction; repeat-y means that the background image only repeats in the vertical direction. It does not appear in the horizontal direction; no-repeat means that the background image does not appear repeatedly.

For example, to prevent the background image from repeating in the horizontal and vertical directions, you can use the following code:

background-repeat: no-repeat;

But this method has a limitation: if your background image is too small, it will not be enough To fill the entire web page, this approach will result in only a small portion of the background image being rendered on the web page and leaving a lot of blank space on the web page. In order to solve this problem, we need to use the background positioning attribute - background-position.

The background-position attribute can help us place the background image anywhere on the web page. It accepts two values, the first value is the horizontal position and the second value is the vertical position. For example, if you want the background image to be displayed in the upper left corner, you can write like this:

background-position: left top;

If you want the background image to be displayed in the lower right corner, you can write like this:

background-position: right bottom;

If you want the background image to be displayed in the lower right corner To fill the entire web page, you can write like this:

background-position: center center;

Some web designers will use a more complex method to prevent the background image from recurring, that is, through the multiple backgrounds of CSS3. Multiple backgrounds allow you to use multiple background images on the same element to achieve an effect like "non-repeating backgrounds".

Using multiple backgrounds requires the background-image attribute of css3. It accepts a set of background images separated by commas. For example, the following is a background composed of three images:

background-image: url("image1.jpg"), url("image2.jpg"), url("image3.jpg");

Here, we can control the position of each background image so that they do not appear repeatedly. For example, the following code can make three background images cover the entire web page from different positions without repeating each other:

background-image: url("image1.jpg"), url("image2.jpg"), url("image3.jpg");
background-position: left top, center center, right bottom;
background-repeat: no-repeat;

By using multiple backgrounds, we can achieve more complex background designs and make the web page richer A sense of layering and three-dimensionality.

In short, how to prevent the background image from recurring depends on whether the web designer can skillfully use various CSS attributes. We can use simple background-repeat attributes, background positioning attributes, and more complex multi-background methods to give the background image the best effect on the web page, thus improving the beauty and user experience of the web page.

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