JSFiddle - React, Tailwind, and code Playground

HTML

<p>hello</p>

<p class="red">world</p>

SCSS

@mixin myMixin($myVariable, $myOtherVariable){
    $false: nil;
    @if $myVariable == $false{
       color: inherit;
    } @else {
       color: $myVariable;
    }
}

p {
    @include myMixin(nil, $myOtherVariable);
}

.red {
    @include myMixin(red, $myOtherVariable);
}