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#config/routes.rb
 
Aaewebinar::Application.routes.draw do
  root to: 'application#index'
 
  mount InternalApi::Engine, at: :internal_api #<- this line right here!
end

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.circle
.rounded
.rounded--custom
.rounded--fancy

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.circle
.rounded
.rounded--custom
.rounded--fancy

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.foo {
  -webkit-box-sizing: border-box;
  -moz-box-sizing:    border-box;
  box-sizing:         border-box;
}

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.foo {
  @include box-sizing(border-box);
}

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@mixin foo($bar) {
  @include prefixer(foo, $bar, webkit moz spec);
}

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border-top-color: #f00;
border-bottom-color: #0f0;
border-left-color: #00f;

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@include directional-property(border, color, #f00 null #0f0 #00f);

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@mixin size($args) {
  @if length($args) == 2 {
    width: nth($args, 1);
    height: nth($args, 2);
  }
  @else {
    width: $args;
    height: $args;
  }
}

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@mixin circle($size) {
  @include size($size);
  border-radius: 50%;
}

@mixin rounded-box($size, $corners) {
  @include size($size);
  @include inline-border-radius($corners);
}