What does default mean in Sass?

default is a Sass flag that indicates conditional assignment to a variable — it assigns a value only if the variable was previously undefined or null .

What is mixin Sass?

Sass Mixins The @mixin directive lets you create CSS code that is to be reused throughout the website. The @include directive is created to let you use (include) the mixin.

How can we set default value to the variable in Sass?

Sass – Variable Defaults You can set the default values for variables by adding ! default flag to the end of the variable value. It will not re-assign the value, if it is already assigned to the variable.

What is the meaning of default in CSS?

The :default CSS pseudo-class selects form elements that are the default in a group of related elements. What this selector matches is defined in HTML Standard §4.16.

How do you write SCSS mixins?

  1. SCSS Syntax. @mixin order($height, $selectors…)
  2. Sass Syntax. @mixin order($height, $selectors…) @
  3. CSS Output. input.name { position: absolute; height: 150px; margin-top: 0px; } input.address { position: absolute; height: 150px; margin-top: 150px; } input.zip { position: absolute; height: 150px; margin-top: 300px; }

Is mixins multiple inheritance?

Mixins are an alternative class design pattern that avoids both single-inheritance class fragmentation and multiple-inheritance diamond dependencies. A mixin is a class that defines and implements a single, well-defined feature. Subclasses that inherit from the mixin inherit this feature—and nothing else.

What does the default selector do?

Definition and Usage. The :default selector selects the default form element in a group of related elements.

What is a mixin in Sass?

}. A mixin’s name can be any Sass identifier, and it can contain any statement other than top-level statements.

What is the difference between mixin and reset_list in Sass?

Mixin names, like all Sass identifiers, treat hyphens and underscores as identical. This means that reset-list and reset_list both refer to the same mixin. This is a historical holdover from the very early days of Sass, when it only allowed underscores in identifier names.

How do I take arguments from a Sass mixin?

A mixin can take Sass data values as arguments. These values are specified when you define the mixin and given a specific value when you @include the mixin. The arguments are then passed to the mixin as variables. Arguments are included in a comma separated list enclosed in parentheses after the mixin name:

What are default values in a mixin?

Default values can be any SassScript expression, and they can even refer to earlier arguments! When a mixin is included, arguments can be passed by name in addition to passing them by their position in the argument list.