diff --git a/addons/autolink/autolink.js b/addons/autolink/autolink.js
index a9034c62e..b2c5534c5 100644
--- a/addons/autolink/autolink.js
+++ b/addons/autolink/autolink.js
@@ -24,7 +24,7 @@
 			var thisPlugin = this;
 
 			// extract target text nodes
-			this.extractTargets($('.xe_content'));
+			this.extractTargets($('.rhymix_content, .xe_content'));
 
 			$(this.targets).each(function(){
 				thisPlugin.cast('AUTOLINK', [this]);
@@ -67,7 +67,7 @@
 		},
 		extractTargets : function(obj) {
 			var thisPlugin = this;
-			var wrap = $('.xe_content', obj);
+			var wrap = $('.rhymix_content, .xe_content', obj);
 			if(wrap.length) {
 				this.extractTargets(wrap);
 				return;
@@ -97,7 +97,7 @@
 
 	xe.registerPlugin(new AutoLink());
 
-	$(document).on('click', '.xe_content a', function() {
+	$(document).on('click', '.rhymix_content a, .xe_content a', function() {
 		var $this = $(this);
 		var href = $this.attr('href');
 		if(!href || /^(?:javascript|mailto):|#/.test(href)) {
diff --git a/addons/photoswipe/rx_photoswipe.js b/addons/photoswipe/rx_photoswipe.js
index cc4891c9d..14ea40563 100644
--- a/addons/photoswipe/rx_photoswipe.js
+++ b/addons/photoswipe/rx_photoswipe.js
@@ -256,4 +256,4 @@ var initPhotoSwipeFromDOM = function(gallerySelector) {
 
 
 // execute above function
-initPhotoSwipeFromDOM('.xe_content');
\ No newline at end of file
+initPhotoSwipeFromDOM('.rhymix_content, .xe_content');
\ No newline at end of file
diff --git a/addons/resize_image/css/resize_image.mobile.css b/addons/resize_image/css/resize_image.mobile.css
index 53d753413..303352e00 100644
--- a/addons/resize_image/css/resize_image.mobile.css
+++ b/addons/resize_image/css/resize_image.mobile.css
@@ -1 +1 @@
-.xe_content img{max-width:100%;height:auto !important}
+.rhymix_content, .xe_content img{max-width:100%;height:auto !important}
diff --git a/addons/resize_image/js/resize_image.js b/addons/resize_image/js/resize_image.js
index 865b4c0cb..8feeddced 100644
--- a/addons/resize_image/js/resize_image.js
+++ b/addons/resize_image/js/resize_image.js
@@ -189,7 +189,7 @@ function getScreen() {
 
 // 이미지 슬라이드를 보는 함수
 function slideshow(event) {
-	var container  = $(this).closest('.xe_content');
+	var container  = $(this).closest('.rhymix_content, .xe_content');
 	var imglist    = container.find("img[rel=xe_gallery]");
 	var currentIdx = $.inArray($(this).get(0), imglist.get());
 	var xScreen    = getScreen();
@@ -242,7 +242,7 @@ $(window).load(function(){
 			});
 	}
 
-	$('.xe_content').each(function() {
+	$('.rhymix_content, .xe_content').each(function() {
 		var contentWidth = dummy.appendTo(this).width();
 		dummy.remove();
 		if(!contentWidth) return;
diff --git a/common/js/common.js b/common/js/common.js
index 71a132fe4..85a4a1a6e 100644
--- a/common/js/common.js
+++ b/common/js/common.js
@@ -340,7 +340,7 @@ jQuery(function($) {
 	});
 	
 	/* Editor preview replacement */
-	$(".editable_preview").addClass("xe_content").attr("tabindex", 0);
+	$(".editable_preview").addClass("rhymix_content xe_content").attr("tabindex", 0);
 	$(".editable_preview").on("click", function() {
 		var input = $(this).siblings(".editable_preview_content");
 		if (input.size()) {
diff --git a/modules/board/skins/default/_comment.html b/modules/board/skins/default/_comment.html
index 2e8b66347..107ba3f28 100644
--- a/modules/board/skins/default/_comment.html
+++ b/modules/board/skins/default/_comment.html
@@ -16,11 +16,11 @@
 				<p class="time">{$comment->getRegdate('Y.m.d H:i')}</p>
 			</div>
 			<!--@if($comment->status == RX_STATUS_DELETED)-->
-				<div class="xe_content deleted">{$lang->msg_deleted_comment}</div>
+				<div class="rhymix_content xe_content deleted">{$lang->msg_deleted_comment}</div>
 			<!--@elseif($comment->status == RX_STATUS_DELETED_BY_ADMIN)-->
-				<div class="xe_content deleted deleted_by_admin">{$lang->msg_admin_deleted_comment}</div>
+				<div class="rhymix_content xe_content deleted deleted_by_admin">{$lang->msg_admin_deleted_comment}</div>
 			<!--@elseif(!$comment->isAccessible())-->
-			<form action="./" method="get" class="xe_content" onsubmit="return procFilter(this, input_password)">
+			<form action="./" method="get" class="rhymix_content xe_content" onsubmit="return procFilter(this, input_password)">
 				<p><label for="cpw_{$comment->comment_srl}">{$lang->msg_is_secret} {$lang->msg_input_password}</label></p>
 				<p><input type="password" name="password" id="cpw_{$comment->comment_srl}" class="iText" /><input type="submit" class="btn" value="{$lang->cmd_input}" /></p>
 				<input type="hidden" name="mid" value="{$mid}" />
diff --git a/modules/board/skins/default/_trackback.html b/modules/board/skins/default/_trackback.html
index 7f88f9da5..fdab3c5c5 100644
--- a/modules/board/skins/default/_trackback.html
+++ b/modules/board/skins/default/_trackback.html
@@ -10,7 +10,7 @@
 				<h3 class="author"><a href="{$val->url}" title="{htmlspecialchars($val->blog_name)}">{htmlspecialchars($val->blog_name)}</a></h3>
 				<p class="time">{zdate($val->regdate, "Y.m.d H:i")}</p>
 			</div>
-			<p class="xe_content"><strong>{htmlspecialchars($val->title)}</strong> {$val->excerpt}</p>
+			<p class="rhymix_content xe_content"><strong>{htmlspecialchars($val->title)}</strong> {$val->excerpt}</p>
 			<p class="action" cond="$grant->manager"><a href="{getUrl('act','dispBoardDeleteTrackback','trackback_srl',$val->trackback_srl)}" class="delete">{$lang->cmd_delete}</a></p>
 		</li>
 	</ul>
diff --git a/modules/board/skins/xedition/_comment.html b/modules/board/skins/xedition/_comment.html
index e281ff70c..7713f0030 100644
--- a/modules/board/skins/xedition/_comment.html
+++ b/modules/board/skins/xedition/_comment.html
@@ -16,11 +16,11 @@
 				<p class="time">{$comment->getRegdate('Y.m.d H:i')}</p>
 			</div>
 			<!--@if($comment->status == RX_STATUS_DELETED)-->
-				<div class="xe_content deleted">{$lang->msg_deleted_comment}</div>
+				<div class="rhymix_content xe_content deleted">{$lang->msg_deleted_comment}</div>
 			<!--@elseif($comment->status == RX_STATUS_DELETED_BY_ADMIN)-->
-				<div class="xe_content deleted deleted_by_admin">{$lang->msg_admin_deleted_comment}</div>
+				<div class="rhymix_content xe_content deleted deleted_by_admin">{$lang->msg_admin_deleted_comment}</div>
 			<!--@elseif(!$comment->isAccessible())-->
-			<form action="./" method="get" class="xe_content secretForm" onsubmit="return procFilter(this, input_password)">
+			<form action="./" method="get" class="rhymix_content xe_content secretForm" onsubmit="return procFilter(this, input_password)">
 				<p><label for="cpw_{$comment->comment_srl}">{$lang->msg_is_secret} {$lang->msg_input_password}</label></p>
 				<p><input type="password" name="password" id="cpw_{$comment->comment_srl}" class="iText" /><input type="submit" class="btn" value="{$lang->cmd_input}" /></p>
 				<input type="hidden" name="mid" value="{$mid}" />
diff --git a/modules/board/skins/xedition/_trackback.html b/modules/board/skins/xedition/_trackback.html
index 7f88f9da5..fdab3c5c5 100644
--- a/modules/board/skins/xedition/_trackback.html
+++ b/modules/board/skins/xedition/_trackback.html
@@ -10,7 +10,7 @@
 				<h3 class="author"><a href="{$val->url}" title="{htmlspecialchars($val->blog_name)}">{htmlspecialchars($val->blog_name)}</a></h3>
 				<p class="time">{zdate($val->regdate, "Y.m.d H:i")}</p>
 			</div>
-			<p class="xe_content"><strong>{htmlspecialchars($val->title)}</strong> {$val->excerpt}</p>
+			<p class="rhymix_content xe_content"><strong>{htmlspecialchars($val->title)}</strong> {$val->excerpt}</p>
 			<p class="action" cond="$grant->manager"><a href="{getUrl('act','dispBoardDeleteTrackback','trackback_srl',$val->trackback_srl)}" class="delete">{$lang->cmd_delete}</a></p>
 		</li>
 	</ul>
diff --git a/modules/comment/comment.item.php b/modules/comment/comment.item.php
index ca9a85652..54ac8bb4a 100644
--- a/modules/comment/comment.item.php
+++ b/modules/comment/comment.item.php
@@ -446,7 +446,7 @@ class commentItem extends BaseObject
 			{
 				$member_srl = 0;
 			}
-			$content = vsprintf('<!--BeforeComment(%d,%d)--><div class="comment_%d_%d xe_content%s">%s</div><!--AfterComment(%d,%d)-->', array(
+			$content = vsprintf('<!--BeforeComment(%d,%d)--><div class="comment_%d_%d rhymix_content xe_content%s">%s</div><!--AfterComment(%d,%d)-->', array(
 				$this->comment_srl, $member_srl, $this->comment_srl, $member_srl, $additional_class, $content, $this->comment_srl, $member_srl
 			));
 		}
@@ -454,7 +454,7 @@ class commentItem extends BaseObject
 		{
 			if($add_xe_content_class)
 			{
-				$content = sprintf('<div class="xe_content%s">%s</div>', $additional_class, $content);
+				$content = sprintf('<div class="rhymix_content xe_content%s">%s</div>', $additional_class, $content);
 			}
 		}
 
diff --git a/modules/communication/m.skins/default/read_message.html b/modules/communication/m.skins/default/read_message.html
index 6cc63e32e..c9b487d0b 100644
--- a/modules/communication/m.skins/default/read_message.html
+++ b/modules/communication/m.skins/default/read_message.html
@@ -4,7 +4,7 @@
 	<h2>{$message->title}</h2><span class="ex">{$message->nick_name} | {zdate($message->regdate, "Y.m.d H:i")}</span>
 </div>
 <div class="co">
-	<div class="xe_content">{$message->content|noescape}</div>
+	<div class="rhymix_content xe_content">{$message->content|noescape}</div>
 	<!--@if(count($message_files))-->
 		<ul class="attachments">
 			<!--@foreach($message_files as $file)-->
diff --git a/modules/communication/m.skins/default/send_message.html b/modules/communication/m.skins/default/send_message.html
index 125f3c295..c17e91fc0 100644
--- a/modules/communication/m.skins/default/send_message.html
+++ b/modules/communication/m.skins/default/send_message.html
@@ -34,7 +34,7 @@
 			<label for="message_title">{$lang->title}</label>
 			<input type="text" name="title" id="message_title" value="{$source_message->title}"/>
 		</li>
-		<li class="xe_content">
+		<li class="rhymix_content xe_content">
 			{$source_message->content|noescape}
 		</li>
 		<li>
diff --git a/modules/communication/m.skins/rx_prn/messages.html b/modules/communication/m.skins/rx_prn/messages.html
index ed87aec6c..4cc020cfa 100644
--- a/modules/communication/m.skins/rx_prn/messages.html
+++ b/modules/communication/m.skins/rx_prn/messages.html
@@ -7,7 +7,7 @@
 		<div>
 			<a href="popup_menu_area" class="member_{$message->member_srl}">{$message->nick_name}</a> / {zdate($message->regdate, "Y-m-d H:i")}
 		</div>
-		<div class="xe_content">
+		<div class="rhymix_content xe_content">
 			{$message->content}
 		</div>
 		<!--@if(count($message_files))-->
diff --git a/modules/communication/m.skins/rx_prn/new_message.html b/modules/communication/m.skins/rx_prn/new_message.html
index 24ea7870e..f6d64a446 100644
--- a/modules/communication/m.skins/rx_prn/new_message.html
+++ b/modules/communication/m.skins/rx_prn/new_message.html
@@ -6,7 +6,7 @@
 		<div>
 			<a href="popup_menu_area" class="member_{$message->member_srl}">{$message->nick_name}</a> / {zdate($message->regdate, "Y-m-d H:i")}
 		</div>
-		<div class="xe_content">
+		<div class="rhymix_content xe_content">
 			{$message->content|noescape}
 		</div>
 		<div class="prn-anchor-buttons">
diff --git a/modules/communication/skins/default/messages.html b/modules/communication/skins/default/messages.html
index c9b3beb41..ec2df2f9f 100644
--- a/modules/communication/skins/default/messages.html
+++ b/modules/communication/skins/default/messages.html
@@ -28,7 +28,7 @@
 		</td>
 	</tr>
 	<tr>
-		<td class="xe_content">
+		<td class="rhymix_content xe_content">
 			{$message->content|noescape}
 		</td>
 	</tr>
diff --git a/modules/communication/skins/default/new_message.html b/modules/communication/skins/default/new_message.html
index e5c75ac3a..78a65b636 100644
--- a/modules/communication/skins/default/new_message.html
+++ b/modules/communication/skins/default/new_message.html
@@ -14,7 +14,7 @@
 			<td>{htmlspecialchars($message->title, ENT_COMPAT | ENT_HTML401, 'UTF-8', false)}</td>
 		</tr>
 		<tr>
-			<td colspan="2" class="xe_content">{$message->content|noescape}</td>
+			<td colspan="2" class="rhymix_content xe_content">{$message->content|noescape}</td>
 		</tr>
 	</table>
 	<div class="btnArea">
diff --git a/modules/communication/skins/simple_world/messages.html b/modules/communication/skins/simple_world/messages.html
index d717866cd..c062976ee 100644
--- a/modules/communication/skins/simple_world/messages.html
+++ b/modules/communication/skins/simple_world/messages.html
@@ -6,7 +6,7 @@
 	<div>
 		<a href="popup_menu_area" class="member_{$message->member_srl}">{$message->nick_name}</a> / {zdate($message->regdate, "Y-m-d H:i")}
 	</div>
-	<div class="xe_content">
+	<div class="rhymix_content xe_content">
 		{$message->content}
 		<!--@if(count($message_files))-->
 			<ul class="attachments">
diff --git a/modules/communication/skins/simple_world/new_message.html b/modules/communication/skins/simple_world/new_message.html
index d1a160fa0..b383114ac 100644
--- a/modules/communication/skins/simple_world/new_message.html
+++ b/modules/communication/skins/simple_world/new_message.html
@@ -5,7 +5,7 @@
 	<div>
 		<a href="popup_menu_area" class="member_{$message->member_srl}">{$message->nick_name}</a> / {zdate($message->regdate, "Y-m-d H:i")}
 	</div>
-	<div class="xe_content">
+	<div class="rhymix_content xe_content">
 		{$message->content|noescape}
 	</div>
 	<div class="sw-footer sw-anchor-buttons">
diff --git a/modules/document/document.item.php b/modules/document/document.item.php
index 7a68891b8..48396293c 100644
--- a/modules/document/document.item.php
+++ b/modules/document/document.item.php
@@ -721,7 +721,7 @@ class documentItem extends BaseObject
 				$memberSrl = 0;
 			}
 			$content = sprintf(
-				'<!--BeforeDocument(%d,%d)--><div class="document_%d_%d xe_content">%s</div><!--AfterDocument(%d,%d)-->',
+				'<!--BeforeDocument(%d,%d)--><div class="document_%d_%d rhymix_content xe_content">%s</div><!--AfterDocument(%d,%d)-->',
 				$this->document_srl, $memberSrl,
 				$this->document_srl, $memberSrl,
 				$content,
@@ -732,7 +732,7 @@ class documentItem extends BaseObject
 		// Add xe_content class although accessing content is not required
 		elseif($add_xe_content_class)
 		{
-			$content = sprintf('<div class="xe_content">%s</div>', $content);
+			$content = sprintf('<div class="rhymix_content xe_content">%s</div>', $content);
 		}
 		// Change the image path to a valid absolute path if resource_realpath is true
 		if($resource_realpath)
diff --git a/modules/document/document.view.php b/modules/document/document.view.php
index 202dd92b0..9ec301dd5 100644
--- a/modules/document/document.view.php
+++ b/modules/document/document.view.php
@@ -73,7 +73,7 @@ class documentView extends document
 		$obj->content = $content;
 		$obj->module_srl = getModel('module')->getModuleInfoByMid(Context::get('mid'))->module_srl;
 		$content = getModel('editor')->converter($obj, 'document');
-		$content = sprintf('<div class="document_0_%d xe_content">%s</div>', Context::get('logged_info')->member_srl, $content);
+		$content = sprintf('<div class="document_0_%d rhymix_content xe_content">%s</div>', Context::get('logged_info')->member_srl, $content);
 		Context::set('content', $content);
 		
 		$this->setTemplatePath($this->module_path.'tpl');
diff --git a/modules/editor/skins/ckeditor/editor.html b/modules/editor/skins/ckeditor/editor.html
index 80b2fdcb2..6ae473559 100644
--- a/modules/editor/skins/ckeditor/editor.html
+++ b/modules/editor/skins/ckeditor/editor.html
@@ -57,13 +57,13 @@ var auto_saved_msg = "{$lang->msg_auto_saved}";
 		var default_font_name = {json_encode($content_font ? trim(array_first(explode(',', $content_font)), '\'" ') : null)};
 		var default_font_fullname = {json_encode($content_font ?: null)};
 		if (default_font_fullname === null && window.getComputedStyle) {
-			var test_content = $('<div class="xe_content"></div>').hide().appendTo($(document.body));
+			var test_content = $('<div class="rhymix_content xe_content"></div>').hide().appendTo($(document.body));
 			var test_styles = window.getComputedStyle(test_content[0], null);
 			if (test_styles && test_styles.getPropertyValue) {
 				default_font_fullname = test_styles.getPropertyValue("font-family");
 				if (default_font_fullname) {
 					default_font_name = $.trim(default_font_fullname.split(',')[0].replace(/['"]/g, ''));
-					css_content = ".xe_content.editable { font-family:" + default_font_fullname + "; } " + css_content;
+					css_content = ".rhymix_content.editable { font-family:" + default_font_fullname + "; } " + css_content;
 				}
 			}
 		}
@@ -159,7 +159,7 @@ var auto_saved_msg = "{$lang->msg_auto_saved}";
 			settings.loadXeComponent = false;
 			var additional_styles = '.cke_wysiwyg_div { padding: 8px !important; }';
 			additional_styles += 'html { min-width: unset; min-height: unset; width: unset; height: unset; margin: unset; padding: unset; }';
-			$('head').append('<st' + 'yle>' + additional_styles + String(css_content).replace(/\.xe_content\.editable/g, '.cke_wysiwyg_div') + '</st' + 'yle>');
+			$('head').append('<st' + 'yle>' + additional_styles + String(css_content).replace(/\.rhymix_content\.editable/g, '.cke_wysiwyg_div') + '</st' + 'yle>');
 		}
 
 		<!--@if($editor_toolbar === 'simple')-->
diff --git a/modules/editor/tpl/js/editor.app.js b/modules/editor/tpl/js/editor.app.js
index 619753685..da6c3fb5e 100644
--- a/modules/editor/tpl/js/editor.app.js
+++ b/modules/editor/tpl/js/editor.app.js
@@ -21,7 +21,7 @@ function getAutoSavedSrl(ret_obj, response_tags, c) {
 (function($){
 	"use strict";
 	var default_ckeconfig = {
-		bodyClass: 'xe_content editable',
+		bodyClass: 'rhymix_content xe_content editable',
 		toolbarCanCollapse: true,
 		toolbarGroups: [
 			{ name: 'clipboard',   groups: [ 'undo', 'clipboard' ] },
diff --git a/modules/widget/widget.controller.php b/modules/widget/widget.controller.php
index 98674cf0c..4f9bffdbd 100644
--- a/modules/widget/widget.controller.php
+++ b/modules/widget/widget.controller.php
@@ -517,7 +517,7 @@ class widgetController extends widget
 					$oEditorController = getController('editor');
 					$body = $oEditorController->transComponent($body);
 
-					$widget_content_header = sprintf('<div class="xe_content xe-widget-wrapper ' . $args->css_class . '" %sstyle="%s"><div style="%s">', $args->id, $style,  $inner_style);
+					$widget_content_header = sprintf('<div class="rhymix_content xe_content xe-widget-wrapper ' . $args->css_class . '" %sstyle="%s"><div style="%s">', $args->id, $style,  $inner_style);
 					$widget_content_body = $body;
 					$widget_content_footer = '</div></div>';
 
@@ -568,7 +568,7 @@ class widgetController extends widget
 					$oWidgetController = getController('widget');
 
 					$widget_content_header = sprintf(
-						'<div class="xe_content widgetOutput ' . $args->css_class . '" widgetstyle="%s" style="%s" widget_padding_left="%s" widget_padding_right="%s" widget_padding_top="%s" widget_padding_bottom="%s" widget="widgetContent" document_srl="%d" %s>'.
+						'<div class="rhymix_content xe_content widgetOutput ' . $args->css_class . '" widgetstyle="%s" style="%s" widget_padding_left="%s" widget_padding_right="%s" widget_padding_top="%s" widget_padding_bottom="%s" widget="widgetContent" document_srl="%d" %s>'.
 						'<div class="widgetResize"></div>'.
 						'<div class="widgetResizeLeft"></div>'.
 						'<div class="widgetBorder">'.