Image Reflections with CSS

By  on  
CSS Image Reflection

Image reflection is a great way to subtly spice up an image.  The first method of creating these reflections was baking them right into the images themselves.  Within the past few years, we've introduced JavaScript strategies and CANVAS alternatives to achieve image reflections without having to modify original images.  The minds behind WebKit have their own idea behind image reflection:  pure CSS.

The Webkit CSS

The -webkit-box-reflect property accepts a value in the following format:

-webkit-box-reflect: 
	<direction> /* above|below|left|right */ 	
	<offset>    /* pixel value start offset from image */
	<mask-box-image> /* http://webkit.org/blog/181/css-masks/ */

A sample usage of -webkit-box-reflect looks like:

.reflectBelow	{ 
	-webkit-box-reflect: below 0
    -webkit-gradient(linear, left top, left bottom, from(transparent), color-stop(0.5, transparent), to(white)); 
}

An involved CSS value but well worth the work. The gradient is linear from left top to left bottom from transparent to white, showing half (0.5 the image).

WebKit first implemented CSS reflections in 2008 and, to my knowledge, no other browsers have implemented a similar API. I find that frustrating but image reflection isn't a priority so I can't complain too much.  I am glad, however, that this is just one of several CSS enhancements given to us by the developers of WebKit!

Recent Features

  • By
    6 Things You Didn&#8217;t Know About Firefox OS

    Firefox OS is all over the tech news and for good reason:  Mozilla's finally given web developers the platform that they need to create apps the way they've been creating them for years -- with CSS, HTML, and JavaScript.  Firefox OS has been rapidly improving...

  • By
    CSS vs. JS Animation: Which is Faster?

    How is it possible that JavaScript-based animation has secretly always been as fast — or faster — than CSS transitions? And, how is it possible that Adobe and Google consistently release media-rich mobile sites that rival the performance of native apps? This article serves as a point-by-point...

Incredible Demos

  • By
    Full Width Textareas

    Working with textarea widths can be painful if you want the textarea to span 100% width.  Why painful?  Because if the textarea's containing element has padding, your "width:100%" textarea will likely stretch outside of the parent container -- a frustrating prospect to say the least.  Luckily...

  • By
    Detect Vendor Prefix with JavaScript

    Regardless of our position on vendor prefixes, we have to live with them and occasionally use them to make things work.  These prefixes can be used in two formats:  the CSS format (-moz-, as in -moz-element) and the JS format (navigator.mozApps).  The awesome X-Tag project has...

Discussion

  1. very good post thanks a lot

  2. Is it possible to have reflections for non-linear gradient as well? If so plz advice :). Thanks.

  3. Hopefully Firefox will catch on soon (and IE in a couple of years).

    • dk_

      Hello from the future! It’s 2021 and Firefox still doesn’t support it!
      But Chromium powered IE does! Maybe in 2031 after Firefox switches to Chromium :D.

  4. It also works on any HTML element, not just images. Check it out: http://tomconlon.com/test/reflect.html

    I haven’t had time to play around with it too much, but I did notice it kind of choked when I wrapped an h1 and ul in a div with the reflectBelow class.

    Very cool, though.

  5. thats great but sad that it doesn’t work in other browsers.

  6. dj

    Is it possible to apply this on a html digital clock or date in a website? If so, how to code it?

  7. PM

    Thanks for sharing it.

    It is not working even in Firefox and obviously in IE.

    Thanks,

  8. Good post, bring on the day when browers are all on the same page with css & html interpretation

  9. This is really buggy in Chrome (20.0.1132.47 Mac). Had to opt for a JS version sadly.

  10. why do we use the old format for creating a ‘linear gradient color mask”, i checked the new format doesn’t work, why is that ?

Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!