Not as bad as CSS filters, but still something you have to consider impact on rendering performance when using multiple reference.prefixed for now in Firefox: -moz-element().and anything you’re currently thinking of ).watermark with multiples backgrounds from Lea Verou idea.animated background, using CSS Animations or by referencing a video, canvas or SVG.live zoom over an image, for example in an e-commerce product page.live thumbnails of previous/next slides in a slideshow.when you have to deal with duplicated content in advanced effects.Few ideas that comes to my mind (some that I've already used since the last 4 years): However, Firefox deals well with recursive references.Įlement() brings CSS design to a new level, in an easily way. Be careful though, your element itself can be a child of your source, so elements may appear twice or more. Have in mind that any part of a website can be referenced, even the whole site if you need it. See the Pen vOwaWz by iamvdo ( on CodePen Live result with Firefox Here's a live demo of what I'm talking about Īs element() creates an image, you can use every CSS properties you’re familiar with to apply and control it, like background, background-repeat, background-size and so on. The live image of this element can be used as div#css-result's background. For example, here’s a text and an image in div#css-source. Just reference the element you want to get a live view, using its id attribute. Well, it’s actually working, and the syntax is very basic. How cool is that? How can this be even possible? When I first discover this property back in 2011, I don’t believe it myself. Every changes to that element will be immediately seen in real-time in the image, even text selection. Image! As you see a DOM element rendered right in the browser, you’ll get an image of it. To put it simply, this function renders any part of a website as a live image. This function was previously defined in Level 3 and so Firefox already has support for it, since its version 4 (May 2011!). The CSS Image Values and Replaced Content Module Level 4 introduces the element() function. If you're not using Firefox right now, maybe you should switch to get live demos working. Maybe, this could change in a near future. But before starting, let me warn you: the feature I’ll show is only supported in Firefox for now and no other browser vendor has shown interest with. Today, I want to share a much more awesome CSS feature. In July, I wrote about advanced CSS filters techniques, such as backdrop-filter and filter().
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