freeCodeCamp Challenge Guide: Attach a Fallback value to a CSS Variable

Attach a Fallback value to a CSS Variable


Problem Explanation

We need to add a fallback value of black to the background property of the .penguin-top and .penguin-bottom classes.


Solutions

Add a fallback value of black to the background property of the .penguin-bottom class:

Solution 1 (Click to Show/Hide)
  .penguin-bottom {
    top: 40%;
    left: 23.5%;  
    /* change code below */
    background: var(--pengiun-skin,black);
    /* change code above */ 
    width: 53%;
    height: 45%;
    border-radius: 70% 70% 100% 100%;
  }

Add a fallback value of black to the background property of the .penguin-top class:

  .penguin-top {
    top: 10%;
    left: 25%;
    /* change code below */
    background: var(--pengiun-skin,black);
    /* change code above */  
    width: 50%;
    height: 45%;
    border-radius: 70% 70% 60% 60%;
  }
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