When customizing Bootstrap with Sass, what is the significance of the !default flag in variable declarations?
- Indicates a variable that can be overridden
- Specifies a variable as a constant
- Flags a variable for global scope
- Marks a variable for conditional compilation
In Sass, the !default flag is used to indicate that a variable's value should only be assigned if the variable is not already defined. This allows for customization without overwriting existing values.
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