How do i perfect this please?

HTML-CSS
1

Tell us what’s happening:

Your code so far


<style>
:root {
  --red-color: red;
}
.red-box {
--red-color:red;
  background: var(--red-color);
  height: 200px;
  width:200px;
}
</style>
<div class="red-box"></div>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.105 Safari/537.36.

Challenge: Improve Compatibility with Browser Fallbacks

Link to the challenge:

2

All you have to do is set the property as you would normally set it, before the variable.

Example:

:root {
 --font-size: 20px; 
}

p {
  font-size: 20px;
  font-size: var(--font-size);
}
3

thanks for your responds