How Can I Preload CSS Images to Improve Contact Form Display Speed?

Preloading CSS Images for Enhanced Contact Form Display

To address the issue of contact form fields initially appearing after the form has been toggled, this article explores different approaches to preloading CSS images and provides a comprehensive solution.

One approach is to use JavaScript to preload the images directly. This method can be implemented using code similar to the provided snippet in the section of your HTML document. However, if using JavaScript does not yield the desired result, an alternative method is recommended.

CSS-Only Preloading

CSS provides a more efficient way to preload images without relying on JavaScript. The trick involves using the ::after pseudo-element to define content that includes the URLs of the images to be preloaded. By default, this content is hidden, ensuring that the images are not rendered.

body::after {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  z-index: -1;
  content: url(img1.png) url(img2.png) url(img3.gif) url(img4.jpg);
}

This code instructs the browser to load the specified images immediately, even though they are not visible on the page. By incorporating this technique, you can preload your contact form fields as CSS background images and ensure that they appear without delay when the form is displayed.

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