Cover image for Backdrop Filter effect with CSS

Backdrop Filter effect with CSS

urielbitton profile image Uriel Bitton ・1 min read

Yesterday i came upon a really cool looking effect on a website and tried to reproduce the effect for a new web app i was developing. It had a transparent container create a filter backdrop on the background image behind it and it was really neat.

Here's the effect:
Alt Text

I tried the usual css property filter: blur(10px) but that only blurred the container itself and not the background behind the element. After some research i found a super simple one line css property to do just that. Since then i've been using it in every app or design i created (where appropriate).

here it is:

.container {
    backdrop-filter: blur(10px);

I had no idea that CSS property existed!

Now add a background image behind your container and watch the magic. Pretty cool right?

Note: Some browsers may not support the property. But the major ones like chrome, firefox and edge do.

Try it out and let me know what you think. Till next time!

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Uriel Bitton


Hi i'm an avid web and app developer in search for creativity and always going after new ideas. Developer of Reactor JS


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For Safari:

.container {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);

Good thought! here is a point to note that currently backdrop-filter is an experimental CSS3 property that have only support in Safari. However, caniuse.com indicates that it has support on Chrome 76 and higher but I don't see any changes as I'm using Chrome 79 at present.

Sadly Firefox doesn't support it at all, but it has a mysterious property -moz-element(#target) which can be used as a fallback with a combination of ::before & ::after elements for Gecko based browsers. Agreed with @rk_jsorbit . as well. :D

Thank you for sharing the tip. I hope you'll keep sharing more useful thoughts. Have a nice one! ;)


Thanks for the sharing! The feature can be enabled in Firefox by setting the layout.css.backdrop-filter.enabled to true in about:config. For more info check out the caniuse.com/#search=backdrop-filter


Thanks for the reply. I've already enabled it in Firefox 79 but still no luck, I don't see the backdrop, only the fallback of background:rgba(0,0,0,0.1). Here is a snapshot:

Backdrop filter in Firefox

I updated Chrome to v84 and did the same test and it works!

Backdrop filter in Chrome

Not sure what's wrong in Firefox.

I think after some research that firefox doesn't have compatility unfortunately.


thanks for sharing man! Chrome works perfectly fine indeed, and i beleive all chromium based browsers too.


Hmm... so you're using saturate(180%) in the backdrop-filter to cancel out the background color with opacity of your fallback...? There's a cleaner solution. You can check if the browser supports backdrop-filter and provide different css code, like with media queries:

@supports (-webkit-backdrop-filter: none) or (backdrop-filter: none) {
  .blurred-container {
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);

/* slightly transparent fallback for Firefox (not supporting backdrop-filter) */
@supports not ((-webkit-backdrop-filter: none) or (backdrop-filter: none)) {
  .blurred-container {
    background-color: rgba(255, 255, 255, .8);

Here's an overview of the browser support for backdrop-filter. Always check this when using more "special" css props :)

Definitely use the fallback option described by Rohit when using backdrop-filter


Still pretty good coverage though, around 75%


True, but in general (not just css) there are some funky edge-cases in browsers out there so checking the availability never hurts. For example Safari doesn't support .ogg files - so if you have any audio on your page you'd better use mp3. Oof.


Wow, that's awesome. I had no idea till now that this kind of trick exist. Thx for sharing




Really nice effect. Definitely gonna use this one in a project.


Awesome man ill add it in thanks a lot!


Thanks for sharing Uriel and Rohit


youre most welcome Charlie!