diff --git a/src/main/java/me/coley/c2h/Code2Html.java b/src/main/java/me/coley/c2h/Code2Html.java
index c8a0b06..e3f90c8 100644
--- a/src/main/java/me/coley/c2h/Code2Html.java
+++ b/src/main/java/me/coley/c2h/Code2Html.java
@@ -15,11 +15,11 @@
 import javafx.stage.FileChooser;
 import javafx.stage.Stage;
 import javafx.util.Pair;
-import jregex.Matcher;
 import jregex.Pattern;
 import me.coley.c2h.config.*;
 import me.coley.c2h.config.model.*;
 import me.coley.c2h.ui.RuleCell;
+import me.coley.c2h.util.Regex;
 import org.apache.commons.io.FileUtils;
 import org.apache.commons.io.IOUtils;
 import org.controlsfx.validation.ValidationSupport;
@@ -45,8 +45,8 @@
  */
 public class Code2Html extends Application implements Callable<Void> {
 	// Base values
-	private static String css = "";
-	private static String js = "";
+	public static String BASE_CSS = "";
+	public static String BASE_JS = "";
 	// Command line options/args
 	@Option(names = {"-c", "--config"}, description = "Config to with languages and themes")
 	private File clConfig;
@@ -58,8 +58,12 @@ public class Code2Html extends Application implements Callable<Void> {
 	private boolean clClipboard;
 	@Option(names = {"-o", "--out"}, description = "The file to output converted HTML to")
 	private File clOutput;
+	@Option(names = {"-i", "--inline"}, description = "Option to make CSS inline with the HTML elements")
+	private boolean clInline;
 	@CommandLine.Parameters(index = "0", description = "The file to convert to styled HTML")
 	private File clInput;
+	// Other options
+	private boolean inline;
 	// Boolean indicating if CLI has priority over GUI
 	private boolean cliExecution;
 	// Controls
@@ -77,11 +81,10 @@ public class Code2Html extends Application implements Callable<Void> {
 	// Config
 	private ConfigHelper helper;
 
-
 	public static void main(String[] args) {
 		try {
-			css = IOUtils.toString(Code2Html.class.getResourceAsStream("/code.css"), UTF_8);
-			js = IOUtils.toString(Code2Html.class.getResourceAsStream("/code.js"), UTF_8);
+			BASE_CSS = IOUtils.toString(Code2Html.class.getResourceAsStream("/code.css"), UTF_8);
+			BASE_JS = IOUtils.toString(Code2Html.class.getResourceAsStream("/code.js"), UTF_8);
 		} catch(Exception e) {
 			e.printStackTrace();
 			System.err.println("Failed to load default resources: css/js");
@@ -134,7 +137,7 @@ public Void call() {
 			helper = new ConfigHelper(configuration, language, theme);
 			// Input reading & parsing
 			String text = FileUtils.readFileToString(clInput, UTF_8);
-			String converted = helper.convert(text);
+			String converted = helper.convert(text, clInline);
 			// Output
 			Platform.runLater(() -> {
 				if(clClipboard) {
@@ -195,7 +198,7 @@ public void start(Stage stage) {
 		txtJS.setFont(Font.font("monospace"));
 		txtHTML.setEditable(false);
 		updateCSS();
-		txtJS.setText(js);
+		txtJS.setText(BASE_JS);
 		txtInput.textProperty().addListener((ob, o, n) -> {
 			// Update HTML
 			updateHTML();
@@ -210,21 +213,9 @@ public void start(Stage stage) {
 			if(!old.equalsIgnoreCase(cur)) {
 				// Iterate over css tags (by matching via regex)
 				for(Rule rule : helper.getRules()) {
-					String r = "(\\.({TITLE}" + rule.getName() + ")\\s*\\{({BODY}[^}]*))\\}";
-					Pattern pattern = new Pattern(r);
-					Matcher matcher = pattern.matcher(cur);
-					if(!matcher.find())
-						return;
-					String body = matcher.group("BODY");
-					// Parse the body of the css class and update the regex-rule style map.
-					r = "({key}\\S+):\\s*({value}.+)(?=;)";
-					pattern = new Pattern(r);
-					matcher = pattern.matcher(body);
-					while(matcher.find()) {
-						String key = matcher.group("key");
-						String value = matcher.group("value");
+					Regex.getCssProperties(cur, "." + rule.getName()).forEach((key, value) -> {
 						helper.getTheme().update(rule.getName(), key, value);
-					}
+					});
 				}
 			}
 			// Update HTML
@@ -309,8 +300,17 @@ public void start(Stage stage) {
 		});
 		mnFile.getItems().addAll(miConfigLoad);
 		mnFile.getItems().addAll(miConfigSave);
+		// TODO: Swap out menu-item for checkbox
+		Menu mnOptions = new Menu("Options");
+		CheckMenuItem miOptionInline = new CheckMenuItem("Inline HTML style");
+		miOptionInline.selectedProperty().addListener((observable, oldValue, newValue) -> {
+			this.inline = newValue.booleanValue();
+			updateHTML();
+		});
+		mnOptions.getItems().addAll(miOptionInline);
+		// inline
 		MenuBar menuBar = new MenuBar();
-		menuBar.getMenus().addAll(mnFile, mnLang, mnTheme);
+		menuBar.getMenus().addAll(mnFile, mnLang, mnTheme, mnOptions);
 		// Layout
 		SplitPane pane = new SplitPane(txtInput, tabs);
 		SplitPane vert = new SplitPane(pane, browser);
@@ -682,7 +682,7 @@ private void updateTitle() {
 	 * Update CSS text.
 	 */
 	private void updateCSS() {
-		txtCSS.setText(helper.getPatternCSS() + css);
+		txtCSS.setText(helper.getPatternCSS() + BASE_CSS);
 	}
 
 	/**
@@ -693,12 +693,14 @@ private void updateHTML() {
 			return;
 		}
 		String text = txtInput.getText().replace("\t", "    ");
-		String html = helper.convert(text);
+		String html = helper.convert(text, inline);
 		String style = txtCSS.getText();
 		StringBuilder sbWeb = new StringBuilder();
-		sbWeb.append("<html><head><style>");
-		sbWeb.append(style);
-		sbWeb.append("</style></head><body>");
+		sbWeb.append("<html><head>");
+		if (!inline) {
+			sbWeb.append("<style>" + style + "</style>");
+		}
+		sbWeb.append("</head><body>");
 		sbWeb.append(html);
 		sbWeb.append("</body></html>");
 		browser.getEngine().loadContent(sbWeb.toString());
diff --git a/src/main/java/me/coley/c2h/config/ConfigHelper.java b/src/main/java/me/coley/c2h/config/ConfigHelper.java
index 5f33854..b92b0d9 100644
--- a/src/main/java/me/coley/c2h/config/ConfigHelper.java
+++ b/src/main/java/me/coley/c2h/config/ConfigHelper.java
@@ -4,9 +4,12 @@
 import jregex.Pattern;
 import lombok.Getter;
 import lombok.Setter;
+import me.coley.c2h.Code2Html;
 import me.coley.c2h.config.model.*;
+import me.coley.c2h.util.Regex;
 
 import java.util.List;
+import java.util.Map;
 
 import static org.apache.commons.text.StringEscapeUtils.escapeHtml4;
 
@@ -67,14 +70,14 @@ public void addRule(Rule rule) {
 	 * @param text
 	 * 		Text to convert into HTML.
 	 *
+	 * @param inline
 	 * @return HTML of the text with matched attributes of the {@link #language current language}.
 	 */
-	public String convert(String text) {
+	public String convert(String text, boolean inline) {
 		Matcher matcher = getPattern().matcher(text);
 		StringBuilder sb = new StringBuilder();
 		int lastEnd = 0;
 		while(matcher.find()) {
-			String styleClass = getClassFromGroup(matcher);
 			int start = matcher.start();
 			int end = matcher.end();
 			// append text not matched
@@ -84,17 +87,43 @@ public String convert(String text) {
 			}
 			// append match
 			String matched = escapeHtml4(text.substring(start, end));
-			sb.append("<span class=\"" + styleClass + "\">" + matched + "</span>");
+			if (inline) {
+				String styleRules = getInlineStyleFromGroup(matcher);
+				sb.append("<span style=\"" + styleRules + "\">" + matched + "</span>");
+			} else {
+				String styleClass = getClassFromGroup(matcher);
+				sb.append("<span class=\"" + styleClass + "\">" + matched + "</span>");
+			}
 			lastEnd = end;
 		}
 		// Append ending text not matched
 		sb.append(escapeHtml4(text.substring(lastEnd)));
 		// Apply line formatting to each line
 		StringBuilder fmt = new StringBuilder();
-		for(String line : sb.toString().split("\n"))
-			fmt.append("<span class=\"line\"></span>" + line + "\n");
-		// Wrap in pre tags and slap it in an HTML page
-		return "<pre>" + fmt.toString() + "</pre>";
+		if(inline) {
+			StringBuilder sbLineStyle = new StringBuilder();
+			StringBuilder sbLinePreStyle = new StringBuilder();
+			Regex.getCssProperties(Code2Html.BASE_CSS, "pre .line").forEach((key, value) -> {
+				sbLineStyle.append(key + ":" + value + ";");
+			});
+			Regex.getCssProperties(Code2Html.BASE_CSS, "pre .line::before").forEach((key, value) -> {
+				sbLinePreStyle.append(key + ":" + value + ";");
+			});
+			int lineNum = 1;
+			for(String line : sb.toString().split("\n"))
+				fmt.append("<span style=\"" +sbLineStyle.toString() + "\"><span style=\"" + sbLinePreStyle.toString() + "\">" + (lineNum++) + "</span></span>" + line + "\n");
+			// Wrap in pre tags and slap it in an HTML page
+			StringBuilder sbPreStyle = new StringBuilder();
+			Regex.getCssProperties(Code2Html.BASE_CSS, "pre").forEach((key, value) -> {
+				sbPreStyle.append(key + ":" + value + ";");
+			});
+			return "<pre style=\"" + sbPreStyle.toString() + "\">" + fmt.toString() + "</pre>";
+		} else {
+			for(String line : sb.toString().split("\n"))
+				fmt.append("<span class=\"line\"></span>" + line + "\n");
+			// Wrap in pre tags and slap it in an HTML page
+			return "<pre>" + fmt.toString() + "</pre>";
+		}
 	}
 
 	/**
@@ -149,4 +178,24 @@ public String getClassFromGroup(Matcher matcher) {
 				return rule.getName();
 		return null;
 	}
+
+	/**
+	 * Fetch the CSS style to be used by the matched group.
+	 *
+	 * @param matcher
+	 * 		Matcher that has found a group.
+	 *
+	 * @return CSS inline style.
+	 */
+	public String getInlineStyleFromGroup(Matcher matcher) {
+		for(Rule rule : getRules())
+			if(matcher.group(rule.getPatternGroupName()) != null) {
+				StringBuilder sbStyle = new StringBuilder();
+				theme.getStylesForRule(rule.getName())
+						.forEach(style ->
+								sbStyle.append(style.getKey() + ":" + style.getValue() + ";"));
+				return sbStyle.toString();
+			}
+		return "";
+	}
 }
diff --git a/src/main/java/me/coley/c2h/util/Regex.java b/src/main/java/me/coley/c2h/util/Regex.java
new file mode 100644
index 0000000..a494691
--- /dev/null
+++ b/src/main/java/me/coley/c2h/util/Regex.java
@@ -0,0 +1,43 @@
+package me.coley.c2h.util;
+
+import jregex.Matcher;
+import jregex.Pattern;
+import org.apache.commons.text.StringEscapeUtils;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Utility for miscellaneous regex actions.
+ *
+ * @author Matt
+ */
+public class Regex {
+	/**
+	 * @param cssText
+	 * 		Text containing CSS to match.
+	 * @param cssRule
+	 * 		Rule to extract properties from.
+	 *
+	 * @return Map of property names to values.
+	 */
+	public static Map<String, String> getCssProperties(String cssText, String cssRule) {
+		Map<String, String> map = new HashMap<>();
+		String regex = "(({TITLE}" + cssRule + ")\\s*\\{({BODY}[^}]*))\\}";
+		Pattern pattern = new Pattern(regex);
+		Matcher matcher = pattern.matcher(cssText);
+		if(!matcher.find())
+			return map;
+		String body = matcher.group("BODY");
+		// Parse the body of the css class and update the regex-rule style map.
+		regex = "({key}\\S+):\\s*({value}.+)(?=;)";
+		pattern = new Pattern(regex);
+		matcher = pattern.matcher(body);
+		while(matcher.find()) {
+			String key = matcher.group("key");
+			String value = matcher.group("value");
+			map.put(key, value);
+		}
+		return map;
+	}
+}
diff --git a/src/main/resources/code.css b/src/main/resources/code.css
index 82dd80b..d7ef33b 100644
--- a/src/main/resources/code.css
+++ b/src/main/resources/code.css
@@ -14,6 +14,7 @@ pre * { font-family: monospace; }
 /* show line numbers */
 pre .line { display: inline-block; }
 pre .line::before {
+	user-select: none;
 	counter-increment: ln;
 	content: counter(ln);
 	display: inline-block;