Recently, I've been working on styling a Vaadin project with CSS. Here's the code snippet I used:
.image-background {
background-image: url("../resources/bilder/wallpaper1.jpg");
However, the outcome didn't meet my expectations. The image has a resolution of 1920x1080px. When viewed on a screen with a lower resolution, only a portion of the image is visible. Is there a way to use CSS to make the image fullscreen on any screen?
Setting Background with Vaadin
When using Spring Boot with Vaadin, place the background image in the src/main/resources/static folder. If not using Spring Boot, then use the src/main/webapp folder for the background image.
Add the necessary CSS to customize the background. By default, the Valo style will apply a background color to the div with the class v-ui. You can create a custom theme to override the background through that, or update the style directly in the code.
@SpringUI
public class MyUi extends UI {
@Override
protected void init(VaadinRequest vaadinRequest) {
initBackground();
initContent();
}
private void initBackground() {
Page.getCurrent().getStyles().add(
".v-ui { background: url(background.jpg) no-repeat center center fixed;" +
"-webkit-background-size: cover;" +
"-moz-background-size: cover;" +
"-o-background-size: cover;" +
"background-size: cover; }"
);
}
...
CSS Customization
To learn more about customizing CSS for background images, you can refer to resources like CSS-Tricks or other sources. The best solution will depend on how you want the background image to behave.
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