How do you use the `@each` loop to generate CSS classes?
Description : Generating classes using `@each` loop.
Answer :
`@each` loop can be used to generate CSS classes dynamically based on a list or map. For example, given a list of colors `$colors: (red, green, blue);`, you can use `@each $color in $colors { .bg-#{$color} { background-color: $color; } }` to create classes like `.bg-red`,`.bg-green`, and `.bg-blue`with the respective background colors.