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CSS Drop Shadow vs Box Shadow

dailydevtips1 profile image Chris Bongers Originally published at daily-dev-tips.com ・2 min read

The other day Josh made a super cool tweet about drop-shadow supporting PNG's; I didn't know it supported PNG's, so I decided to give it a go.

HTML Structure

For my example we are using my favourite Pokémon "Eevee" and will place our three Eevee png's in a container.

<div class="container">
  <img src="https://i.imgur.com/q3SXJQf.png" />
  <img src="https://i.imgur.com/q3SXJQf.png" class="box-shadow" />
  <img src="https://i.imgur.com/q3SXJQf.png" class="drop-shadow" />
</div>
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As you can see one is going to be a raw example, one will have a box-shadow and the third will have the drop-shadow.

CSS Box Shadow

You probably have seen and used the box-shadow before, it's a cool feature and adds a shadow to our "box".

It works like this:

.box-shadow {
  box-shadow: 0px 0px 10px #000;
}
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It puts a shadow on the image, but on the box of it.

Box-shadow

CSS Drop Shadow

Then there is a CSS Filter which is amazing when it comes to contouring a PNG!

.drop-shadow {
  filter: drop-shadow(0px 0px 10px rgba(0, 0, 0, 0.5));
}
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Drop-shadow

This all will result in the following Codepen.

Browser Support

As mentioned before, CSS Filters are cool, but not widely supported yet 😩.

There is a polyfill, but also limited.

CSS Filter support

Thank you for reading, and let's connect!

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Discussion

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christophwessels profile image
Christoph Weßels

thanks for the tip

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dailydevtips1 profile image
Chris Bongers Author

Hi Christoph! Your welcome, hope it serves you some use in the feature.

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William Henderson

Drop Shadow is VERY buggy on iOS so I strongly recommend not using it if your app will be used on iOS.