This CSS code snippet targets all `` elements in the HTML document. It sets a background image for the `` element using the `background` property. Explanation: - `background`: This property is used to set multiple background properties in one declaration. - `url(loader.gif)`: This specifies the URL of the background image. In this case, it is referencing a file named "loader.gif" in the same directory as the CSS file. - `no−repeat`: This value specifies that the background image should not be repeated. It will only appear once in its original size. - `50% 50%`: This part sets the position of the background image. The first value (50%) defines the horizontal position (centered in this case), and the second value (50%) defines the vertical position (centered in this case). This will position the background image in the center of the `` element. Overall, this CSS code is setting a background image for all `` elements without repeating it and positioning it at the center of each image.