Versionv1.0.4
 Family.scss is a set of    24 smart Sass mixins which will help you to manage the style of    :nth-child 'ified elements, in an easy and classy way.  
Website : http://lukyvj.github.io/family.scss/
$ middleman ( You don't use middleman ? Goto      https://middlemanapp.com/ )    $ npm install family.scss     $ bower install family.scss     Family.scss on npm
First of all, import the Family.scss source file into your project.
Then you can use the mixins right away on your stylesheets.
Input :
ul li { background: blue; @include first(3) { background: blue; } }
Output :
ul li { background: blue; } ul li:nth-child(-n + 3) { background: blue; }
It's true, I did it for Sass, but some awesome contributors extended it to :
first() mixin now uses      :first-child if the given parameter is      1 , closing#10    n-between() mixin added, closing#35    at-least() ,      at-most() and      in-between() quantity queries mixins added, closing#24    pair-between() is now      even -between() , closing#34    impair-between() is now      odd-between() , closing#34    backdrop-filter removed from the about page