Tell us what’s happening:
how can i write this down . the fall back background color to make it red. it still refuses to work
Your code so far
<style>
:root {
--red-color: red;
}
.red-box {
background:red;
background: var(--red-skin);
height: 200px;
width:200px;
}
</style>
<div class="red-box"></div>
**Link to the challenge:**
https://learn.freecodecamp.org/responsive-web-design/basic-css/improve-compatibility-with-browser-fallbacks