FAQ: Your First Sass Stylesheet - Maps & Lists

This community-built FAQ covers the “Maps & Lists” exercise from the lesson “Your First Sass Stylesheet”.

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I don’t understand what this line means : “You can also surround a list with parentheses and create lists made up of lists.”

Could someone help me out, thanks alot!

Have a good day

Maurice Moss! :slight_smile:

The exercise shows this example of a list:

$standard-border: 4px solid black;

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:

@each $border in $borders {
  .border-#{nth($border, 1)} {
    border-width: nth($border, 2);
    border-style: nth($border, 3);
    border-color: nth($border, 4);

This syntax is probably strange for you now, but these two snippets combined will result in this CSS code:

.border-standard {
  border-width: 2px;
  border-style: solid;
  border-color: black;

.border-error {
  border-width: 4px;
  border-style: double;
  border-color: red;

.border-info {
  border-width: 2px;
  border-style: dotted;
  border-color: blue;

That is an example of a list of lists in SASS :slight_smile:

IT Crowd fellow fan? :smiley:

Thanks alot for your help I understand now!

Have a great day!

You’re very welcome :slight_smile:

Of course! May the Elders of the Internet lead you :slight_smile:

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