@import "monokai.css";

.spacer {
  border: 1px solid red;
  height: 50px;
}

@import "monokai.css";

.spacer {
  height: 80px;
}

@media (max-width: 768px) {
  .spacer {
    height: 50px;
  }
}

Add a media query to the spacer class so that its size matches the navbar size on different devices.
Add a media query to the spacer class so that its size matches the
navbar size on different devices.

When the size is 768px or below, the size of the spacer class is reduced
from 80px to 50px.
