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          // SCSS comments (not visible in CSS) | 
        
        
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          /* CSS comments (visible in CSS) */ | 
        
        
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          // Variables | 
        
        
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          $color: black; | 
        
        
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          p { | 
        
        
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            color: $color; | 
        
        
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          } | 
        
        
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          // Nesting & Abbreviation | 
        
        
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          aside { | 
        
        
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            border: { | 
        
        
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              width: 1px; | 
        
        
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              style: solid; | 
        
        
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              color: $color; | 
        
        
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            } | 
        
        
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          } | 
        
        
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          nav { | 
        
        
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            background: none; | 
        
        
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            ul { | 
        
        
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              list-style-type: none; | 
        
        
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              a { | 
        
        
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                color: $color; | 
        
        
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                &:hover, &:focus, &:active { // Skip default space: `a:hover` instead of `a :hover` | 
        
        
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                  color: red; | 
        
        
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                } | 
        
        
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              } | 
        
        
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            } | 
        
        
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            body.blog & { // Skip default nesting: `body.blog nav` instead of `nav body.blog` | 
        
        
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              background: green; | 
        
        
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            } | 
        
        
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          } | 
        
        
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          // Extend/Inheritance | 
        
        
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          .infobox { | 
        
        
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            border: 1px solid #ccc; | 
        
        
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            padding: 10px; | 
        
        
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            color: $color; | 
        
        
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          } | 
        
        
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          .success { | 
        
        
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            @extend .infobox; | 
        
        
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            border-color: green; | 
        
        
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          } | 
        
        
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          // The % prefix creates rules that never get used on their own. | 
        
        
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          // Theses classes are solely for the purpose of extending. | 
        
        
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          %info { | 
        
        
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            position: absolute; | 
        
        
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          } | 
        
        
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          .notice { | 
        
        
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            @extend %info; | 
        
        
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          } | 
        
        
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          // Mixins | 
        
        
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          @mixin outline { | 
        
        
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            border: 1px solid black; | 
        
        
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          } | 
        
        
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          @mixin animate( $property, $duration, $easing ) { | 
        
        
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            transition: $property $duration $easing; | 
        
        
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          } | 
        
        
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          @mixin default_animate( $property: all, $duration: 1s, $easing: ease ) { // Mixin with defaults | 
        
        
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            transition: $property $duration $easing; | 
        
        
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          } | 
        
        
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          aside { | 
        
        
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            border-radius: 10px; | 
        
        
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            @include outline; | 
        
        
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          } | 
        
        
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          a { | 
        
        
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            @include animate( all, 1s, linear ); | 
        
        
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          } | 
        
        
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          nav a { | 
        
        
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            @include default_animate( $duration: 3s ); // Use defaults with custom $duration | 
        
        
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          } | 
        
        
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          // Operators: +, -, *, /, and % | 
        
        
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          .container { | 
        
        
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            width: 600px / 960px * 100%; | 
        
        
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          } | 
        
        
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          // Functions | 
        
        
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          $highlight: green; | 
        
        
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          p { | 
        
        
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            color: lighten( $highlight, 20% ); | 
        
        
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          } | 
        
        
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          p { | 
        
        
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            color: darken( $highlight, 10% ); | 
        
        
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          } | 
        
        
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          p { | 
        
        
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            color: fade-out( $highlight, 0.5 ); | 
        
        
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          } | 
        
        
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          p { | 
        
        
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            color: adjust-hue( $highlight, 90 ); // Usually between -360 degrees and 360 degrees. | 
        
        
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          } | 
        
        
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          p { | 
        
        
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            color: red + blue; // Compiles to magenta. | 
        
        
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          } | 
        
        
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          // Loops | 
        
        
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          $list: (orange, purple, teal); | 
        
        
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          @each $item in $list { | 
        
        
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            .#{$item} { | 
        
        
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              background: $item; | 
        
        
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            } | 
        
        
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          } | 
        
        
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          $total: 10; | 
        
        
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          $step: 360deg / $total; | 
        
        
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          @for $i from 1 through $total { | 
        
        
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             .ray:nth-child(#{$i}){ | 
        
        
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                background: adjust-hue( blue, $i * $step ); | 
        
        
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             } | 
        
        
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          } | 
        
        
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          // If/Else | 
        
        
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          p { | 
        
        
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            margin-left: if( $i % 2 == 0, 0px, 50px ); | 
        
        
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          } | 
        
        
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          // Import/Embed (.scss files only) | 
        
        
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          @import 'normalize' // Prevent separate compiling with a leading underscore: `_normalize.scss` |