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But sometimes we want to define values for “different occasions”. Let’s say that we want to use different borders for error messages, or for informative messages.
In situations like this we can define a list of lists:
$borders: (
standard 2px solid black,
error 4px double red,
info 2px dotted blue
);
This will be introduced later in the course, but to make this example complete I have to note that we now can use this list to define different classes using a loop, like so: