Remove Selection Border Around Image in Firefox

CSS, Pebblet

While creating my site, I ran into a problem with a selection border appearing around images. These images were used as buttons. When I clicked the button, the selection border appears.

To remove the selection border from around an image for Firefox, add this to your CSS file:

:focus { -moz-outline-style: none; }

Now, when you  click on the image it will look like this:

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