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diff --git a/school/node_modules/cssstyle/node_modules/cssom/lib/CSSStyleRule.js b/school/node_modules/cssstyle/node_modules/cssom/lib/CSSStyleRule.js
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+++ b/school/node_modules/cssstyle/node_modules/cssom/lib/CSSStyleRule.js
@@ -0,0 +1,190 @@
+//.CommonJS
+var CSSOM = {
+	CSSStyleDeclaration: require("./CSSStyleDeclaration").CSSStyleDeclaration,
+	CSSRule: require("./CSSRule").CSSRule
+};
+///CommonJS
+
+
+/**
+ * @constructor
+ * @see http://dev.w3.org/csswg/cssom/#cssstylerule
+ * @see http://www.w3.org/TR/DOM-Level-2-Style/css.html#CSS-CSSStyleRule
+ */
+CSSOM.CSSStyleRule = function CSSStyleRule() {
+	CSSOM.CSSRule.call(this);
+	this.selectorText = "";
+	this.style = new CSSOM.CSSStyleDeclaration();
+	this.style.parentRule = this;
+};
+
+CSSOM.CSSStyleRule.prototype = new CSSOM.CSSRule();
+CSSOM.CSSStyleRule.prototype.constructor = CSSOM.CSSStyleRule;
+CSSOM.CSSStyleRule.prototype.type = 1;
+
+Object.defineProperty(CSSOM.CSSStyleRule.prototype, "cssText", {
+	get: function() {
+		var text;
+		if (this.selectorText) {
+			text = this.selectorText + " {" + this.style.cssText + "}";
+		} else {
+			text = "";
+		}
+		return text;
+	},
+	set: function(cssText) {
+		var rule = CSSOM.CSSStyleRule.parse(cssText);
+		this.style = rule.style;
+		this.selectorText = rule.selectorText;
+	}
+});
+
+
+/**
+ * NON-STANDARD
+ * lightweight version of parse.js.
+ * @param {string} ruleText
+ * @return CSSStyleRule
+ */
+CSSOM.CSSStyleRule.parse = function(ruleText) {
+	var i = 0;
+	var state = "selector";
+	var index;
+	var j = i;
+	var buffer = "";
+
+	var SIGNIFICANT_WHITESPACE = {
+		"selector": true,
+		"value": true
+	};
+
+	var styleRule = new CSSOM.CSSStyleRule();
+	var name, priority="";
+
+	for (var character; (character = ruleText.charAt(i)); i++) {
+
+		switch (character) {
+
+		case " ":
+		case "\t":
+		case "\r":
+		case "\n":
+		case "\f":
+			if (SIGNIFICANT_WHITESPACE[state]) {
+				// Squash 2 or more white-spaces in the row into 1
+				switch (ruleText.charAt(i - 1)) {
+					case " ":
+					case "\t":
+					case "\r":
+					case "\n":
+					case "\f":
+						break;
+					default:
+						buffer += " ";
+						break;
+				}
+			}
+			break;
+
+		// String
+		case '"':
+			j = i + 1;
+			index = ruleText.indexOf('"', j) + 1;
+			if (!index) {
+				throw '" is missing';
+			}
+			buffer += ruleText.slice(i, index);
+			i = index - 1;
+			break;
+
+		case "'":
+			j = i + 1;
+			index = ruleText.indexOf("'", j) + 1;
+			if (!index) {
+				throw "' is missing";
+			}
+			buffer += ruleText.slice(i, index);
+			i = index - 1;
+			break;
+
+		// Comment
+		case "/":
+			if (ruleText.charAt(i + 1) === "*") {
+				i += 2;
+				index = ruleText.indexOf("*/", i);
+				if (index === -1) {
+					throw new SyntaxError("Missing */");
+				} else {
+					i = index + 1;
+				}
+			} else {
+				buffer += character;
+			}
+			break;
+
+		case "{":
+			if (state === "selector") {
+				styleRule.selectorText = buffer.trim();
+				buffer = "";
+				state = "name";
+			}
+			break;
+
+		case ":":
+			if (state === "name") {
+				name = buffer.trim();
+				buffer = "";
+				state = "value";
+			} else {
+				buffer += character;
+			}
+			break;
+
+		case "!":
+			if (state === "value" && ruleText.indexOf("!important", i) === i) {
+				priority = "important";
+				i += "important".length;
+			} else {
+				buffer += character;
+			}
+			break;
+
+		case ";":
+			if (state === "value") {
+				styleRule.style.setProperty(name, buffer.trim(), priority);
+				priority = "";
+				buffer = "";
+				state = "name";
+			} else {
+				buffer += character;
+			}
+			break;
+
+		case "}":
+			if (state === "value") {
+				styleRule.style.setProperty(name, buffer.trim(), priority);
+				priority = "";
+				buffer = "";
+			} else if (state === "name") {
+				break;
+			} else {
+				buffer += character;
+			}
+			state = "selector";
+			break;
+
+		default:
+			buffer += character;
+			break;
+
+		}
+	}
+
+	return styleRule;
+
+};
+
+
+//.CommonJS
+exports.CSSStyleRule = CSSOM.CSSStyleRule;
+///CommonJS