Remove codepen demo code (#66)

3 files changed, 0 insertions, 36 deletions

diff --git a/package.json b/package.json
index db6a0c8..b92e7a0 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,6 @@
   "scripts": {
     "test": "mocha",
     "generate-test-results": "node-sass test/sass/ -o test/result/",
-    "codepen": "browserify postcss/codepen.js | babel --presets=env | uglifyjs --compress --mangle > postcss/codepen.bundle.js",
     "gulp-examples": "cd examples/less/gulp && gulp build && cd ../../postcss/gulp && gulp build && cd ../../sass/gulp && gulp build && cd ../../stylus/gulp && gulp build && cd ../../../..",
     "node-examples": "node examples/less/node/index.js && node examples/postcss/node/index.js && node examples/sass/node/index.js && node examples/stylus/node/index.js"
   },
diff --git a/postcss/codepen.bundle.js b/postcss/codepen.bundle.js
deleted file mode 100644
index c0be5e8..0000000
--- a/postcss/codepen.bundle.js
+++ /dev/null
@@ -1 +0,0 @@
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s=r-1;n(e,(c=r,f=i,Math.round(c+Math.random()*(f-c))),i);for(var a=e[i],u=r;u<i;u++)t(e[u],a)<=0&&n(e,s+=1,u);n(e,s+1,u);var l=s+1;o(e,t,r,l-1),o(e,t,l+1,i)}var c,f}r.quickSort=function(e,t){o(e,t,0,e.length-1)}},{}],37:[function(e,t,r){var n=e("./util"),o=e("./binary-search"),i=e("./array-set").ArraySet,s=e("./base64-vlq"),a=e("./quick-sort").quickSort;function u(e,t){var r=e;return"string"==typeof e&&(r=n.parseSourceMapInput(e)),null!=r.sections?new f(r,t):new l(r,t)}function l(e,t){var r=e;"string"==typeof e&&(r=n.parseSourceMapInput(e));var o=n.getArg(r,"version"),s=n.getArg(r,"sources"),a=n.getArg(r,"names",[]),u=n.getArg(r,"sourceRoot",null),l=n.getArg(r,"sourcesContent",null),c=n.getArg(r,"mappings"),f=n.getArg(r,"file",null);if(o!=this._version)throw new Error("Unsupported version: "+o);u&&(u=n.normalize(u)),s=s.map(String).map(n.normalize).map(function(e){return u&&n.isAbsolute(u)&&n.isAbsolute(e)?n.relative(u,e):e}),this._names=i.fromArray(a.map(String),!0),this._sources=i.fromArray(s,!0),this._absoluteSources=this._sources.toArray().map(function(e){return n.computeSourceURL(u,e,t)}),this.sourceRoot=u,this.sourcesContent=l,this._mappings=c,this._sourceMapURL=t,this.file=f}function c(){this.generatedLine=0,this.generatedColumn=0,this.source=null,this.originalLine=null,this.originalColumn=null,this.name=null}function f(e,t){var r=e;"string"==typeof e&&(r=n.parseSourceMapInput(e));var o=n.getArg(r,"version"),s=n.getArg(r,"sections");if(o!=this._version)throw new Error("Unsupported version: "+o);this._sources=new i,this._names=new i;var a={line:-1,column:0};this._sections=s.map(function(e){if(e.url)throw new Error("Support for url field in sections not implemented.");var r=n.getArg(e,"offset"),o=n.getArg(r,"line"),i=n.getArg(r,"column");if(o<a.line||o===a.line&&i<a.column)throw new Error("Section offsets must be ordered and non-overlapping.");return a=r,{generatedOffset:{generatedLine:o+1,generatedColumn:i+1},consumer:new u(n.getArg(e,"map"),t)}})}u.fromSourceMap=function(e,t){return l.fromSourceMap(e,t)},u.prototype._version=3,u.prototype.__generatedMappings=null,Object.defineProperty(u.prototype,"_generatedMappings",{configurable:!0,enumerable:!0,get:function(){return this.__generatedMappings||this._parseMappings(this._mappings,this.sourceRoot),this.__generatedMappings}}),u.prototype.__originalMappings=null,Object.defineProperty(u.prototype,"_originalMappings",{configurable:!0,enumerable:!0,get:function(){return this.__originalMappings||this._parseMappings(this._mappings,this.sourceRoot),this.__originalMappings}}),u.prototype._charIsMappingSeparator=function(e,t){var r=e.charAt(t);return";"===r||","===r},u.prototype._parseMappings=function(e,t){throw new Error("Subclasses must implement _parseMappings")},u.GENERATED_ORDER=1,u.ORIGINAL_ORDER=2,u.GREATEST_LOWER_BOUND=1,u.LEAST_UPPER_BOUND=2,u.prototype.eachMapping=function(e,t,r){var o,i=t||null;switch(r||u.GENERATED_ORDER){case u.GENERATED_ORDER:o=this._generatedMappings;break;case u.ORIGINAL_ORDER:o=this._originalMappings;break;default:throw new Error("Unknown order of iteration.")}var s=this.sourceRoot;o.map(function(e){var t=null===e.source?null:this._sources.at(e.source);return{source:t=n.computeSourceURL(s,t,this._sourceMapURL),generatedLine:e.generatedLine,generatedColumn:e.generatedColumn,originalLine:e.originalLine,originalColumn:e.originalColumn,name:null===e.name?null:this._names.at(e.name)}},this).forEach(e,i)},u.prototype.allGeneratedPositionsFor=function(e){var t=n.getArg(e,"line"),r={source:n.getArg(e,"source"),originalLine:t,originalColumn:n.getArg(e,"column",0)};if(r.source=this._findSourceIndex(r.source),r.source<0)return[];var i=[],s=this._findMapping(r,this._originalMappings,"originalLine","originalColumn",n.compareByOriginalPositions,o.LEAST_UPPER_BOUND);if(s>=0){var a=this._originalMappings[s];if(void 0===e.column)for(var u=a.originalLine;a&&a.originalLine===u;)i.push({line:n.getArg(a,"generatedLine",null),column:n.getArg(a,"generatedColumn",null),lastColumn:n.getArg(a,"lastGeneratedColumn",null)}),a=this._originalMappings[++s];else for(var l=a.originalColumn;a&&a.originalLine===t&&a.originalColumn==l;)i.push({line:n.getArg(a,"generatedLine",null),column:n.getArg(a,"generatedColumn",null),lastColumn:n.getArg(a,"lastGeneratedColumn",null)}),a=this._originalMappings[++s]}return i},r.SourceMapConsumer=u,l.prototype=Object.create(u.prototype),l.prototype.consumer=u,l.prototype._findSourceIndex=function(e){var t,r=e;if(null!=this.sourceRoot&&(r=n.relative(this.sourceRoot,r)),this._sources.has(r))return this._sources.indexOf(r);for(t=0;t<this._absoluteSources.length;++t)if(this._absoluteSources[t]==e)return t;return-1},l.fromSourceMap=function(e,t){var r=Object.create(l.prototype),o=r._names=i.fromArray(e._names.toArray(),!0),s=r._sources=i.fromArray(e._sources.toArray(),!0);r.sourceRoot=e._sourceRoot,r.sourcesContent=e._generateSourcesContent(r._sources.toArray(),r.sourceRoot),r.file=e._file,r._sourceMapURL=t,r._absoluteSources=r._sources.toArray().map(function(e){return n.computeSourceURL(r.sourceRoot,e,t)});for(var u=e._mappings.toArray().slice(),f=r.__generatedMappings=[],p=r.__originalMappings=[],h=0,d=u.length;h<d;h++){var g=u[h],m=new c;m.generatedLine=g.generatedLine,m.generatedColumn=g.generatedColumn,g.source&&(m.source=s.indexOf(g.source),m.originalLine=g.originalLine,m.originalColumn=g.originalColumn,g.name&&(m.name=o.indexOf(g.name)),p.push(m)),f.push(m)}return a(r.__originalMappings,n.compareByOriginalPositions),r},l.prototype._version=3,Object.defineProperty(l.prototype,"sources",{get:function(){return this._absoluteSources.slice()}}),l.prototype._parseMappings=function(e,t){for(var r,o,i,u,l,f=1,p=0,h=0,d=0,g=0,m=0,y=e.length,v=0,w={},b={},_=[],S=[];v<y;)if(";"===e.charAt(v))f++,v++,p=0;else if(","===e.charAt(v))v++;else{for((r=new c).generatedLine=f,u=v;u<y&&!this._charIsMappingSeparator(e,u);u++);if(i=w[o=e.slice(v,u)])v+=o.length;else{for(i=[];v<u;)s.decode(e,v,b),l=b.value,v=b.rest,i.push(l);if(2===i.length)throw new Error("Found a source, but no line and column");if(3===i.length)throw new Error("Found a source and line, but no column");w[o]=i}r.generatedColumn=p+i[0],p=r.generatedColumn,i.length>1&&(r.source=g+i[1],g+=i[1],r.originalLine=h+i[2],h=r.originalLine,r.originalLine+=1,r.originalColumn=d+i[3],d=r.originalColumn,i.length>4&&(r.name=m+i[4],m+=i[4])),S.push(r),"number"==typeof r.originalLine&&_.push(r)}a(S,n.compareByGeneratedPositionsDeflated),this.__generatedMappings=S,a(_,n.compareByOriginalPositions),this.__originalMappings=_},l.prototype._findMapping=function(e,t,r,n,i,s){if(e[r]<=0)throw new TypeError("Line must be greater than or equal to 1, got "+e[r]);if(e[n]<0)throw new TypeError("Column must be greater than or equal to 0, got "+e[n]);return o.search(e,t,i,s)},l.prototype.computeColumnSpans=function(){for(var e=0;e<this._generatedMappings.length;++e){var t=this._generatedMappings[e];if(e+1<this._generatedMappings.length){var r=this._generatedMappings[e+1];if(t.generatedLine===r.generatedLine){t.lastGeneratedColumn=r.generatedColumn-1;continue}}t.lastGeneratedColumn=1/0}},l.prototype.originalPositionFor=function(e){var t={generatedLine:n.getArg(e,"line"),generatedColumn:n.getArg(e,"column")},r=this._findMapping(t,this._generatedMappings,"generatedLine","generatedColumn",n.compareByGeneratedPositionsDeflated,n.getArg(e,"bias",u.GREATEST_LOWER_BOUND));if(r>=0){var o=this._generatedMappings[r];if(o.generatedLine===t.generatedLine){var i=n.getArg(o,"source",null);null!==i&&(i=this._sources.at(i),i=n.computeSourceURL(this.sourceRoot,i,this._sourceMapURL));var s=n.getArg(o,"name",null);return null!==s&&(s=this._names.at(s)),{source:i,line:n.getArg(o,"originalLine",null),column:n.getArg(o,"originalColumn",null),name:s}}}return{source:null,line:null,column:null,name:null}},l.prototype.hasContentsOfAllSources=function(){return!!this.sourcesContent&&(this.sourcesContent.length>=this._sources.size()&&!this.sourcesContent.some(function(e){return null==e}))},l.prototype.sourceContentFor=function(e,t){if(!this.sourcesContent)return null;var r=this._findSourceIndex(e);if(r>=0)return this.sourcesContent[r];var o,i=e;if(null!=this.sourceRoot&&(i=n.relative(this.sourceRoot,i)),null!=this.sourceRoot&&(o=n.urlParse(this.sourceRoot))){var s=i.replace(/^file:\/\//,"");if("file"==o.scheme&&this._sources.has(s))return this.sourcesContent[this._sources.indexOf(s)];if((!o.path||"/"==o.path)&&this._sources.has("/"+i))return this.sourcesContent[this._sources.indexOf("/"+i)]}if(t)return null;throw new Error('"'+i+'" is not in the SourceMap.')},l.prototype.generatedPositionFor=function(e){var t=n.getArg(e,"source");if((t=this._findSourceIndex(t))<0)return{line:null,column:null,lastColumn:null};var r={source:t,originalLine:n.getArg(e,"line"),originalColumn:n.getArg(e,"column")},o=this._findMapping(r,this._originalMappings,"originalLine","originalColumn",n.compareByOriginalPositions,n.getArg(e,"bias",u.GREATEST_LOWER_BOUND));if(o>=0){var i=this._originalMappings[o];if(i.source===r.source)return{line:n.getArg(i,"generatedLine",null),column:n.getArg(i,"generatedColumn",null),lastColumn:n.getArg(i,"lastGeneratedColumn",null)}}return{line:null,column:null,lastColumn:null}},r.BasicSourceMapConsumer=l,f.prototype=Object.create(u.prototype),f.prototype.constructor=u,f.prototype._version=3,Object.defineProperty(f.prototype,"sources",{get:function(){for(var e=[],t=0;t<this._sections.length;t++)for(var r=0;r<this._sections[t].consumer.sources.length;r++)e.push(this._sections[t].consumer.sources[r]);return e}}),f.prototype.originalPositionFor=function(e){var t={generatedLine:n.getArg(e,"line"),generatedColumn:n.getArg(e,"column")},r=o.search(t,this._sections,function(e,t){var r=e.generatedLine-t.generatedOffset.generatedLine;return r||e.generatedColumn-t.generatedOffset.generatedColumn}),i=this._sections[r];return i?i.consumer.originalPositionFor({line:t.generatedLine-(i.generatedOffset.generatedLine-1),column:t.generatedColumn-(i.generatedOffset.generatedLine===t.generatedLine?i.generatedOffset.generatedColumn-1:0),bias:e.bias}):{source:null,line:null,column:null,name:null}},f.prototype.hasContentsOfAllSources=function(){return this._sections.every(function(e){return e.consumer.hasContentsOfAllSources()})},f.prototype.sourceContentFor=function(e,t){for(var r=0;r<this._sections.length;r++){var n=this._sections[r].consumer.sourceContentFor(e,!0);if(n)return n}if(t)return null;throw new Error('"'+e+'" is not in the SourceMap.')},f.prototype.generatedPositionFor=function(e){for(var t=0;t<this._sections.length;t++){var r=this._sections[t];if(-1!==r.consumer._findSourceIndex(n.getArg(e,"source"))){var o=r.consumer.generatedPositionFor(e);if(o)return{line:o.line+(r.generatedOffset.generatedLine-1),column:o.column+(r.generatedOffset.generatedLine===o.line?r.generatedOffset.generatedColumn-1:0)}}}return{line:null,column:null}},f.prototype._parseMappings=function(e,t){this.__generatedMappings=[],this.__originalMappings=[];for(var r=0;r<this._sections.length;r++)for(var o=this._sections[r],i=o.consumer._generatedMappings,s=0;s<i.length;s++){var u=i[s],l=o.consumer._sources.at(u.source);l=n.computeSourceURL(o.consumer.sourceRoot,l,this._sourceMapURL),this._sources.add(l),l=this._sources.indexOf(l);var c=null;u.name&&(c=o.consumer._names.at(u.name),this._names.add(c),c=this._names.indexOf(c));var f={source:l,generatedLine:u.generatedLine+(o.generatedOffset.generatedLine-1),generatedColumn:u.generatedColumn+(o.generatedOffset.generatedLine===u.generatedLine?o.generatedOffset.generatedColumn-1:0),originalLine:u.originalLine,originalColumn:u.originalColumn,name:c};this.__generatedMappings.push(f),"number"==typeof f.originalLine&&this.__originalMappings.push(f)}a(this.__generatedMappings,n.compareByGeneratedPositionsDeflated),a(this.__originalMappings,n.compareByOriginalPositions)},r.IndexedSourceMapConsumer=f},{"./array-set":31,"./base64-vlq":32,"./binary-search":34,"./quick-sort":36,"./util":40}],38:[function(e,t,r){var n=e("./base64-vlq"),o=e("./util"),i=e("./array-set").ArraySet,s=e("./mapping-list").MappingList;function a(e){e||(e={}),this._file=o.getArg(e,"file",null),this._sourceRoot=o.getArg(e,"sourceRoot",null),this._skipValidation=o.getArg(e,"skipValidation",!1),this._sources=new i,this._names=new i,this._mappings=new s,this._sourcesContents=null}a.prototype._version=3,a.fromSourceMap=function(e){var t=e.sourceRoot,r=new a({file:e.file,sourceRoot:t});return e.eachMapping(function(e){var n={generated:{line:e.generatedLine,column:e.generatedColumn}};null!=e.source&&(n.source=e.source,null!=t&&(n.source=o.relative(t,n.source)),n.original={line:e.originalLine,column:e.originalColumn},null!=e.name&&(n.name=e.name)),r.addMapping(n)}),e.sources.forEach(function(n){var i=n;null!==t&&(i=o.relative(t,n)),r._sources.has(i)||r._sources.add(i);var s=e.sourceContentFor(n);null!=s&&r.setSourceContent(n,s)}),r},a.prototype.addMapping=function(e){var t=o.getArg(e,"generated"),r=o.getArg(e,"original",null),n=o.getArg(e,"source",null),i=o.getArg(e,"name",null);this._skipValidation||this._validateMapping(t,r,n,i),null!=n&&(n=String(n),this._sources.has(n)||this._sources.add(n)),null!=i&&(i=String(i),this._names.has(i)||this._names.add(i)),this._mappings.add({generatedLine:t.line,generatedColumn:t.column,originalLine:null!=r&&r.line,originalColumn:null!=r&&r.column,source:n,name:i})},a.prototype.setSourceContent=function(e,t){var r=e;null!=this._sourceRoot&&(r=o.relative(this._sourceRoot,r)),null!=t?(this._sourcesContents||(this._sourcesContents=Object.create(null)),this._sourcesContents[o.toSetString(r)]=t):this._sourcesContents&&(delete this._sourcesContents[o.toSetString(r)],0===Object.keys(this._sourcesContents).length&&(this._sourcesContents=null))},a.prototype.applySourceMap=function(e,t,r){var n=t;if(null==t){if(null==e.file)throw new Error('SourceMapGenerator.prototype.applySourceMap requires either an explicit source file, or the source map\'s "file" property. Both were omitted.');n=e.file}var s=this._sourceRoot;null!=s&&(n=o.relative(s,n));var a=new i,u=new i;this._mappings.unsortedForEach(function(t){if(t.source===n&&null!=t.originalLine){var i=e.originalPositionFor({line:t.originalLine,column:t.originalColumn});null!=i.source&&(t.source=i.source,null!=r&&(t.source=o.join(r,t.source)),null!=s&&(t.source=o.relative(s,t.source)),t.originalLine=i.line,t.originalColumn=i.column,null!=i.name&&(t.name=i.name))}var l=t.source;null==l||a.has(l)||a.add(l);var c=t.name;null==c||u.has(c)||u.add(c)},this),this._sources=a,this._names=u,e.sources.forEach(function(t){var n=e.sourceContentFor(t);null!=n&&(null!=r&&(t=o.join(r,t)),null!=s&&(t=o.relative(s,t)),this.setSourceContent(t,n))},this)},a.prototype._validateMapping=function(e,t,r,n){if(t&&"number"!=typeof t.line&&"number"!=typeof t.column)throw new Error("original.line and original.column are not numbers -- you probably meant to omit the original mapping entirely and only map the generated position. If so, pass null for the original mapping instead of an object with empty or null values.");if((!(e&&"line"in e&&"column"in e&&e.line>0&&e.column>=0)||t||r||n)&&!(e&&"line"in e&&"column"in e&&t&&"line"in t&&"column"in t&&e.line>0&&e.column>=0&&t.line>0&&t.column>=0&&r))throw new Error("Invalid mapping: "+JSON.stringify({generated:e,source:r,original:t,name:n}))},a.prototype._serializeMappings=function(){for(var e,t,r,i,s=0,a=1,u=0,l=0,c=0,f=0,p="",h=this._mappings.toArray(),d=0,g=h.length;d<g;d++){if(e="",(t=h[d]).generatedLine!==a)for(s=0;t.generatedLine!==a;)e+=";",a++;else if(d>0){if(!o.compareByGeneratedPositionsInflated(t,h[d-1]))continue;e+=","}e+=n.encode(t.generatedColumn-s),s=t.generatedColumn,null!=t.source&&(i=this._sources.indexOf(t.source),e+=n.encode(i-f),f=i,e+=n.encode(t.originalLine-1-l),l=t.originalLine-1,e+=n.encode(t.originalColumn-u),u=t.originalColumn,null!=t.name&&(r=this._names.indexOf(t.name),e+=n.encode(r-c),c=r)),p+=e}return p},a.prototype._generateSourcesContent=function(e,t){return e.map(function(e){if(!this._sourcesContents)return null;null!=t&&(e=o.relative(t,e));var r=o.toSetString(e);return Object.prototype.hasOwnProperty.call(this._sourcesContents,r)?this._sourcesContents[r]:null},this)},a.prototype.toJSON=function(){var e={version:this._version,sources:this._sources.toArray(),names:this._names.toArray(),mappings:this._serializeMappings()};return null!=this._file&&(e.file=this._file),null!=this._sourceRoot&&(e.sourceRoot=this._sourceRoot),this._sourcesContents&&(e.sourcesContent=this._generateSourcesContent(e.sources,e.sourceRoot)),e},a.prototype.toString=function(){return JSON.stringify(this.toJSON())},r.SourceMapGenerator=a},{"./array-set":31,"./base64-vlq":32,"./mapping-list":35,"./util":40}],39:[function(e,t,r){var n=e("./source-map-generator").SourceMapGenerator,o=e("./util"),i=/(\r?\n)/,s="$$$isSourceNode$$$";function a(e,t,r,n,o){this.children=[],this.sourceContents={},this.line=null==e?null:e,this.column=null==t?null:t,this.source=null==r?null:r,this.name=null==o?null:o,this[s]=!0,null!=n&&this.add(n)}a.fromStringWithSourceMap=function(e,t,r){var n=new a,s=e.split(i),u=0,l=function(){return e()+(e()||"");function e(){return u<s.length?s[u++]:void 0}},c=1,f=0,p=null;return t.eachMapping(function(e){if(null!==p){if(!(c<e.generatedLine)){var t=(r=s[u]||"").substr(0,e.generatedColumn-f);return s[u]=r.substr(e.generatedColumn-f),f=e.generatedColumn,h(p,t),void(p=e)}h(p,l()),c++,f=0}for(;c<e.generatedLine;)n.add(l()),c++;if(f<e.generatedColumn){var r=s[u]||"";n.add(r.substr(0,e.generatedColumn)),s[u]=r.substr(e.generatedColumn),f=e.generatedColumn}p=e},this),u<s.length&&(p&&h(p,l()),n.add(s.splice(u).join(""))),t.sources.forEach(function(e){var i=t.sourceContentFor(e);null!=i&&(null!=r&&(e=o.join(r,e)),n.setSourceContent(e,i))}),n;function h(e,t){if(null===e||void 0===e.source)n.add(t);else{var i=r?o.join(r,e.source):e.source;n.add(new a(e.originalLine,e.originalColumn,i,t,e.name))}}},a.prototype.add=function(e){if(Array.isArray(e))e.forEach(function(e){this.add(e)},this);else{if(!e[s]&&"string"!=typeof e)throw new TypeError("Expected a SourceNode, string, or an array of SourceNodes and strings. Got "+e);e&&this.children.push(e)}return this},a.prototype.prepend=function(e){if(Array.isArray(e))for(var t=e.length-1;t>=0;t--)this.prepend(e[t]);else{if(!e[s]&&"string"!=typeof e)throw new TypeError("Expected a SourceNode, string, or an array of SourceNodes and strings. 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n=Object.keys(this.sourceContents);for(t=0,r=n.length;t<r;t++)e(o.fromSetString(n[t]),this.sourceContents[n[t]])},a.prototype.toString=function(){var e="";return this.walk(function(t){e+=t}),e},a.prototype.toStringWithSourceMap=function(e){var t={code:"",line:1,column:0},r=new n(e),o=!1,i=null,s=null,a=null,u=null;return this.walk(function(e,n){t.code+=e,null!==n.source&&null!==n.line&&null!==n.column?(i===n.source&&s===n.line&&a===n.column&&u===n.name||r.addMapping({source:n.source,original:{line:n.line,column:n.column},generated:{line:t.line,column:t.column},name:n.name}),i=n.source,s=n.line,a=n.column,u=n.name,o=!0):o&&(r.addMapping({generated:{line:t.line,column:t.column}}),i=null,o=!1);for(var l=0,c=e.length;l<c;l++)10===e.charCodeAt(l)?(t.line++,t.column=0,l+1===c?(i=null,o=!1):o&&r.addMapping({source:n.source,original:{line:n.line,column:n.column},generated:{line:t.line,column:t.column},name:n.name})):t.column++}),this.walkSourceContents(function(e,t){r.setSourceContent(e,t)}),{code:t.code,map:r}},r.SourceNode=a},{"./source-map-generator":38,"./util":40}],40:[function(e,t,r){r.getArg=function(e,t,r){if(t in e)return e[t];if(3===arguments.length)return r;throw new Error('"'+t+'" is a required argument.')};var n=/^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.-]*)(?::(\d+))?(.*)$/,o=/^data:.+\,.+$/;function i(e){var t=e.match(n);return t?{scheme:t[1],auth:t[2],host:t[3],port:t[4],path:t[5]}:null}function s(e){var t="";return e.scheme&&(t+=e.scheme+":"),t+="//",e.auth&&(t+=e.auth+"@"),e.host&&(t+=e.host),e.port&&(t+=":"+e.port),e.path&&(t+=e.path),t}function a(e){var t=e,n=i(e);if(n){if(!n.path)return e;t=n.path}for(var o,a=r.isAbsolute(t),u=t.split(/\/+/),l=0,c=u.length-1;c>=0;c--)"."===(o=u[c])?u.splice(c,1):".."===o?l++:l>0&&(""===o?(u.splice(c+1,l),l=0):(u.splice(c,2),l--));return""===(t=u.join("/"))&&(t=a?"/":"."),n?(n.path=t,s(n)):t}function u(e,t){""===e&&(e="."),""===t&&(t=".");var r=i(t),n=i(e);if(n&&(e=n.path||"/"),r&&!r.scheme)return n&&(r.scheme=n.scheme),s(r);if(r||t.match(o))return t;if(n&&!n.host&&!n.path)return n.host=t,s(n);var u="/"===t.charAt(0)?t:a(e.replace(/\/+$/,"")+"/"+t);return n?(n.path=u,s(n)):u}r.urlParse=i,r.urlGenerate=s,r.normalize=a,r.join=u,r.isAbsolute=function(e){return"/"===e.charAt(0)||n.test(e)},r.relative=function(e,t){""===e&&(e="."),e=e.replace(/\/$/,"");for(var r=0;0!==t.indexOf(e+"/");){var n=e.lastIndexOf("/");if(n<0)return t;if((e=e.slice(0,n)).match(/^([^\/]+:\/)?\/*$/))return t;++r}return Array(r+1).join("../")+t.substr(e.length+1)};var l=!("__proto__"in Object.create(null));function c(e){return e}function f(e){if(!e)return!1;var t=e.length;if(t<9)return!1;if(95!==e.charCodeAt(t-1)||95!==e.charCodeAt(t-2)||111!==e.charCodeAt(t-3)||116!==e.charCodeAt(t-4)||111!==e.charCodeAt(t-5)||114!==e.charCodeAt(t-6)||112!==e.charCodeAt(t-7)||95!==e.charCodeAt(t-8)||95!==e.charCodeAt(t-9))return!1;for(var r=t-10;r>=0;r--)if(36!==e.charCodeAt(r))return!1;return!0}function p(e,t){return e===t?0:null===e?1:null===t?-1:e>t?1:-1}r.toSetString=l?c:function(e){return f(e)?"$"+e:e},r.fromSetString=l?c:function(e){return f(e)?e.slice(1):e},r.compareByOriginalPositions=function(e,t,r){var n=p(e.source,t.source);return 0!==n?n:0!=(n=e.originalLine-t.originalLine)?n:0!=(n=e.originalColumn-t.originalColumn)||r?n:0!=(n=e.generatedColumn-t.generatedColumn)?n:0!=(n=e.generatedLine-t.generatedLine)?n:p(e.name,t.name)},r.compareByGeneratedPositionsDeflated=function(e,t,r){var n=e.generatedLine-t.generatedLine;return 0!==n?n:0!=(n=e.generatedColumn-t.generatedColumn)||r?n:0!==(n=p(e.source,t.source))?n:0!=(n=e.originalLine-t.originalLine)?n:0!=(n=e.originalColumn-t.originalColumn)?n:p(e.name,t.name)},r.compareByGeneratedPositionsInflated=function(e,t){var r=e.generatedLine-t.generatedLine;return 0!==r?r:0!=(r=e.generatedColumn-t.generatedColumn)?r:0!==(r=p(e.source,t.source))?r:0!=(r=e.originalLine-t.originalLine)?r:0!=(r=e.originalColumn-t.originalColumn)?r:p(e.name,t.name)},r.parseSourceMapInput=function(e){return JSON.parse(e.replace(/^\)]}'[^\n]*\n/,""))},r.computeSourceURL=function(e,t,r){if(t=t||"",e&&("/"!==e[e.length-1]&&"/"!==t[0]&&(e+="/"),t=e+t),r){var n=i(r);if(!n)throw new Error("sourceMapURL could not be parsed");if(n.path){var o=n.path.lastIndexOf("/");o>=0&&(n.path=n.path.substring(0,o+1))}t=u(s(n),t)}return a(t)}},{}],41:[function(e,t,r){r.SourceMapGenerator=e("./lib/source-map-generator").SourceMapGenerator,r.SourceMapConsumer=e("./lib/source-map-consumer").SourceMapConsumer,r.SourceNode=e("./lib/source-node").SourceNode},{"./lib/source-map-consumer":37,"./lib/source-map-generator":38,"./lib/source-node":39}],42:[function(e,t,r){var n,o,i=t.exports={};function s(){throw new Error("setTimeout has not been defined")}function a(){throw new Error("clearTimeout has not been defined")}function u(e){if(n===setTimeout)return setTimeout(e,0);if((n===s||!n)&&setTimeout)return n=setTimeout,setTimeout(e,0);try{return n(e,0)}catch(t){try{return n.call(null,e,0)}catch(t){return n.call(this,e,0)}}}!function(){try{n="function"==typeof setTimeout?setTimeout:s}catch(e){n=s}try{o="function"==typeof clearTimeout?clearTimeout:a}catch(e){o=a}}();var l,c=[],f=!1,p=-1;function h(){f&&l&&(f=!1,l.length?c=l.concat(c):p=-1,c.length&&d())}function d(){if(!f){var e=u(h);f=!0;for(var t=c.length;t;){for(l=c,c=[];++p<t;)l&&l[p].run();p=-1,t=c.length}l=null,f=!1,function(e){if(o===clearTimeout)return clearTimeout(e);if((o===a||!o)&&clearTimeout)return o=clearTimeout,clearTimeout(e);try{o(e)}catch(t){try{return o.call(null,e)}catch(t){return o.call(this,e)}}}(e)}}function g(e,t){this.fun=e,this.array=t}function m(){}i.nextTick=function(e){var t=new Array(arguments.length-1);if(arguments.length>1)for(var r=1;r<arguments.length;r++)t[r-1]=arguments[r];c.push(new g(e,t)),1!==c.length||f||u(d)},g.prototype.run=function(){this.fun.apply(null,this.array)},i.title="browser",i.browser=!0,i.env={},i.argv=[],i.version="",i.versions={},i.on=m,i.addListener=m,i.once=m,i.off=m,i.removeListener=m,i.removeAllListeners=m,i.emit=m,i.prependListener=m,i.prependOnceListener=m,i.listeners=function(e){return[]},i.binding=function(e){throw new Error("process.binding is not supported")},i.cwd=function(){return"/"},i.chdir=function(e){throw new Error("process.chdir is not supported")},i.umask=function(){return 0}},{}],43:[function(e,t,r){var n=e(".."),o=function(e){n.process(e.textContent,{}).then(function(t){e.textContent=t.css},console.error)},i=document.head.getElementsByTagName("style");i.length&&Array.prototype.forEach.call(i,o),new MutationObserver(function(e){return e.forEach(function(e){return Array.prototype.filter.call(e.addedNodes||[],function(e){return"STYLE"===e.nodeName}).forEach(o)})}).observe(document.head,{childList:!0})},{"..":44}],44:[function(e,t,r){var n=e("postcss");t.exports=n.plugin("postcss-rfs",function(e){var t="breakpointUnit option is invalid, it must be `px`, `rem` or 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`em`.")),function(i){i.walkRules(function(i){i.selector.includes(r)||i.walkDecls(function(s){if(-1!==e.propList.indexOf(s.prop)&&(s.prop="font-size",new RegExp(/(\d*\.?\d+)(px|rem)/g).test(s.value))){var a=parseFloat(s.value);if(s.value.indexOf("rem")>-1&&(a*=e.remValue),"px"===e.fontSizeUnit?s.value=o(a,e.unitPrecision)+"px":"rem"===e.fontSizeUnit?s.value=o(a/e.remValue,e.unitPrecision)+"rem":console.error("fontSizeUnit option is not valid, it must be `px` or `rem`."),!(e.baseFontSize>=a||1===e.factor)){var u=e.baseFontSize+(a-e.baseFontSize)/e.factor,l=a-u;"rem"===e.fontSizeUnit&&(u/=e.remValue);i.selector;var c=e.twoDimensional?"vmin":"vw";a="calc("+o(u,e.unitPrecision)+e.fontSizeUnit+" + "+o(100*l/e.breakpoint,e.unitPrecision)+c+")";var f=n.atRule(function(e){var r={name:"media"};switch(e.breakpointUnit){case"em":case"rem":var n=e.breakpoint/e.remValue;e.twoDimensional?r.params="(max-width: "+n+e.breakpointUnit+"), (max-height: "+n+e.breakpointUnit+")":r.params="(max-width: "+n+e.breakpointUnit+")";break;case"px":e.twoDimensional?r.params="(max-width: "+e.breakpoint+"px), (max-height: "+e.breakpoint+"px)":r.params="(max-width: "+e.breakpoint+"px)";break;default:console.error(t)}return r}(e)),p=n.rule({selector:i.selector,source:i.source});if(p.append(s.clone({value:a})),f.append(p),i.parent.insertAfter(i,f.clone()),e.generateDisableClasses){var h=i.selector.split(","),d="",g=!0,m=!1,y=void 0;try{for(var v,w=h[Symbol.iterator]();!(g=(v=w.next()).done);g=!0){var b=v.value;d+=b+",\n",d+=r+" "+b+",\n",d+=r+b+",\n"}}catch(e){m=!0,y=e}finally{try{!g&&w.return&&w.return()}finally{if(m)throw y}}d=d.slice(0,-2);var _=n.rule({selector:d,source:i.source});_.append(s.clone()),i.parent.insertAfter(i,_),s.remove()}}}})})};function o(e,t){var r=Math.pow(10,t+1),n=Math.floor(e*r);return 10*Math.round(n/10)/r}})},{postcss:18}]},{},[43]);
diff --git a/postcss/codepen.js b/postcss/codepen.js
deleted file mode 100644
index 699b422..0000000
--- a/postcss/codepen.js
+++ /dev/null
@@ -1,34 +0,0 @@
-// load a PostCSS plugin
-const plugin = require('..');
-
-// update <style> after running its contents through a PostCSS plugin
-const updateStyle = (style) => {
-  plugin.process(style.textContent, {/* plugin options go here */}).then(
-    (result) => {
-      style.textContent = result.css;
-    },
-    console.error
-  );
-};
-
-// update any pre-existing <style> in <head> using the PostCSS plugin
-const styles = document.head.getElementsByTagName('style');
-
-if (styles.length) {
-  Array.prototype.forEach.call(styles, updateStyle);
-}
-
-// watch for and update any new <style> in <head> using the PostCSS plugin
-(new MutationObserver(
-  (mutations) => mutations.forEach(
-    (mutation) => Array.prototype.filter.call(
-      mutation.addedNodes || [],
-      (node) => node.nodeName === 'STYLE'
-    ).forEach(updateStyle)
-  )
-)).observe(
-  document.head,
-  {
-    childList: true
-  }
-);