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**Challenge:** Create Reusable CSS with Mixins
**Link to the challenge:**
https://www.freecodecamp.org/learn/front-end-libraries/sass/create-reusable-css-with-mixins
You’re off to a good start here, but let me try to point you in the right direction
@include border-radius($radius);
You’re assigning the border-radius mixin to the #awesome element with this line, which is correct - but instead of $radius you need to pass the value that the instructions give: 15px.
However, you also need to define the border-radius mixin above the #awesome section. Follow the example in the instructions for defining a mixin: