Freecodecamp: Your .red-box rule should include a fallback with the background set to red immediately before the existing background declaration.

[Atulsinghm]

Describe your problem and - if possible - how to reproduce it

please help me regarding this issue

Add a Link to the page with the problem

https://learn.freecodecamp.org/responsive-web-design/basic-css/improve-compatibility-with-browser-fallbacks

Tell us about your browser and operating system

• Browser Name: chrome
• Browser Version: Version 69.0.3497.100 (Official Build) (64-bit)
• Operating System:
  

If possible, add a screenshot here

[RaspberryLime]

This is not a bug with the site. You should ask for help on the forum or on chat at
https://gitter.im/FreeCodeCamp/Help instead.

[Darshan197]

You just need to add one line at the top on your .red-box that is "background: red".
Try It

[Atulsinghm]

You just need to add one line at the top on your .red-box that is "background: red".
Try It

Thanks for your support Dear Darshan but it's not working .

[Darshan197]

Did You Write Like This If NO Then Try This
If YES Then I Don't Know Because It's Working For Me.....

[Atulsinghm]

This is the right way to get it done .

thanks a lot to all of you .

[laronis]

Thanks for sharing!

[thecodingaviator]

@Atulsinghm / @ezioda004 The solution has been given above please close

[anasansari157]

Thanks @Atulsinghm for sharing the problem. I was stuck here too.

[r3klaw]

thanks got stuck there lol

[JanefrancessC]

Thanks. I was stuck too

[udidkl]

I was stuck too