Tell us what’s happening:
Describe your issue in detail here.
**Your code so far**
<style>
:root {
--red-color: red;
}
.red-box {
background:
var(--red-color) ;
height: 200px;
width:200px;
}
</style>
<div class="red-box" ></div>
**Your browser information:**
User Agent is: Mozilla/5.0 (Linux; Android 8.1.0; CPH1803) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.105 Mobile Safari/537.36
.
Challenge: Improve Compatibility with Browser Fallbacks
Link to the challenge: