Tell us what’s happening:
It looks like a variable is being used to set the background color of the .red-box
class. Let’s improve our browser compatibility by adding another background
declaration right before the existing declaration and set its value to red. i could not get it right
Your code so far
<style>
:root {
--red-color: red;
}
.red-box {
color: (red);
background: var(--red-color);
height: 200px;
width:200px;
}
</style>
<div class="red-box"></div>