How do i perfect this please?

Tell us what’s happening:

Your code so far

:root {
  --red-color: red;
.red-box {
  background: var(--red-color);
  height: 200px;
<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:

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


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

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

thanks for your responds