One example is, when working with Modernizr, you should specify different guidelines according to supported functions:
during the imported file, imports as usual, but if the CSS is generated, "reference" selectors (as well as any media queries made up of only reference selectors) will not be output. reference types won't show up in the produced CSS unless the reference types are used as mixins or prolonged.
Increase is not able to match selectors with variables. If selector is made up of variable, increase will ignore it.
In looking to keep as near as is possible to your declarative nature of CSS, Less has opted to apply conditional execution by way of guarded mixins as opposed to if/else statements, inside the vein of @media query characteristic specs.
If you'd like to make a mixin but you do not want that mixin to be inside your CSS output, put parentheses following the mixin definition.
It can be valuable to prepend a selector into the inherited (parent) selectors. This may be finished by Placing the & immediately after recent selector.
Even so, you would want to return a correct Less node in the event you wanted to, say, multiply that versus other values or do other Less functions. Usually the output in your stylesheet is plain textual content (which can be fantastic for the purposes).
Should you have numerous matching mixins, all policies are evaluated and merged, and the last matching value with that identifier is returned. This is similar into the cascade in CSS, and it means that you can "override" mixin values.
The merge aspect permits aggregating values from various Attributes right into a comma or House divided listing underneath one residence. merge is beneficial for Houses for instance qualifications and change.
If a read more ruleset contains many selectors, any of them can provide the extend key word. Several selectors with increase in one ruleset:
Occasionally, you may want to change the conduct of a mixin, according to the parameters you pass to it. Let's begin with something basic:
Lengthen by default appears to be for actual match between selectors. It does make any difference no matter whether selector uses foremost star or not. It does not matter that two nth-expressions provide the same that means, they have to should exact same sort in order to be matched.
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