Nibbler‘s new “Darkness” test

Today we’ve made a new test live on Nibbler that will allow you to test your websites in the dark.

It’s called the “Darkness” test and will test what your website looks like in the dark, or when the screen’s turned off. Studies show that many people view websites alone in the dark, and this new test will look for any special fluorescent CSS properties that the site uses. Glow in the dark CSS is part of the CSS4 specification, but you can use it right now with the -moz prefix.

-moz-glowinthedark:80%;

It’s important that websites are visible under all lighting conditions. Reasons for darkness include:

• Night time
• Power cut
• Eclipse
• You’re in a cave
• Incorrect use of curtains

The new Darkness test should not be confused with The Darkness badge, which is awarded to fansites of the British glam rock band “The Darkness” who achieved nationwide success in the early 2000′s.

Try it on your site

Try testing your site on Nibbler today, to see how you score on the darkness test, and don’t forget to Tweet about it!