diff --git a/Common/3dParty/html/css/src/CCssCalculator.cpp b/Common/3dParty/html/css/src/CCssCalculator.cpp
index 8459444250..99f5d65e05 100644
--- a/Common/3dParty/html/css/src/CCssCalculator.cpp
+++ b/Common/3dParty/html/css/src/CCssCalculator.cpp
@@ -58,6 +58,11 @@ namespace NSCSS
 		return m_pInternal->GetDpi();
 	}
 
+	bool CCssCalculator::HaveStylesById(const std::wstring& wsId) const
+	{
+		return m_pInternal->HaveStylesById(wsId);
+	}
+
 	void CCssCalculator::ClearPageData()
 	{
 		m_pInternal->ClearPageData();
diff --git a/Common/3dParty/html/css/src/CCssCalculator.h b/Common/3dParty/html/css/src/CCssCalculator.h
index 678095428b..5047193e6e 100644
--- a/Common/3dParty/html/css/src/CCssCalculator.h
+++ b/Common/3dParty/html/css/src/CCssCalculator.h
@@ -32,6 +32,8 @@ namespace NSCSS
 		std::wstring GetEncoding()   const;
 		unsigned short int GetDpi()  const;
 
+		bool HaveStylesById(const std::wstring& wsId) const;
+
 		void ClearPageData();
 		void ClearEmbeddedStyles();
 		void ClearAllowedStyleFiles();
diff --git a/Common/3dParty/html/css/src/CCssCalculator_Private.cpp b/Common/3dParty/html/css/src/CCssCalculator_Private.cpp
index 45017aa9f9..c15e55a36d 100644
--- a/Common/3dParty/html/css/src/CCssCalculator_Private.cpp
+++ b/Common/3dParty/html/css/src/CCssCalculator_Private.cpp
@@ -184,7 +184,7 @@ namespace NSCSS
 	}
 	#endif
 
-	const CElement* CStyleStorage::FindElement(const std::wstring& wsSelector)
+	const CElement* CStyleStorage::FindElement(const std::wstring& wsSelector) const
 	{
 		if (wsSelector.empty())
 			return nullptr;
@@ -470,7 +470,7 @@ namespace NSCSS
 		}
 	}
 
-	const CElement* CStyleStorage::FindSelectorFromStyleData(const std::wstring& wsSelector, const std::map<std::wstring, CElement*>& mStyleData)
+	const CElement* CStyleStorage::FindSelectorFromStyleData(const std::wstring& wsSelector, const std::map<std::wstring, CElement*>& mStyleData) const
 	{
 		std::map<std::wstring, CElement*>::const_iterator itFound = mStyleData.find(wsSelector);
 
@@ -765,6 +765,11 @@ namespace NSCSS
 		return m_nDpi;
 	}
 
+	bool CCssCalculator_Private::HaveStylesById(const std::wstring& wsId) const
+	{
+		return nullptr != m_oStyleStorage.FindElement(L'#' + wsId);
+	}
+
 	void CCssCalculator_Private::ClearEmbeddedStyles()
 	{
 		m_oStyleStorage.ClearEmbeddedStyles();
diff --git a/Common/3dParty/html/css/src/CCssCalculator_Private.h b/Common/3dParty/html/css/src/CCssCalculator_Private.h
index 814e7228cd..f57c97a189 100644
--- a/Common/3dParty/html/css/src/CCssCalculator_Private.h
+++ b/Common/3dParty/html/css/src/CCssCalculator_Private.h
@@ -37,7 +37,7 @@ namespace NSCSS
 		void ClearPageData();
 		#endif
 
-		const CElement* FindElement(const std::wstring& wsSelector);
+		const CElement* FindElement(const std::wstring& wsSelector) const;
 	private:
 		typedef struct
 		{
@@ -77,7 +77,7 @@ namespace NSCSS
 
 		void GetOutputData(KatanaOutput* oOutput, std::map<std::wstring, CElement*>& mStyleData);
 
-		const CElement* FindSelectorFromStyleData(const std::wstring& wsSelector, const std::map<std::wstring, CElement*>& mStyleData);
+		const CElement* FindSelectorFromStyleData(const std::wstring& wsSelector, const std::map<std::wstring, CElement*>& mStyleData) const;
 	};
 
 	class CCssCalculator_Private
@@ -122,6 +122,8 @@ namespace NSCSS
 		std::wstring GetEncoding() const;
 		unsigned short int GetDpi() const;
 
+		bool HaveStylesById(const std::wstring& wsId) const;
+
 		void ClearEmbeddedStyles();
 		void ClearAllowedStyleFiles();
 		void ClearStylesFromFile(const std::wstring& wsFilePath);
diff --git a/HtmlFile2/htmlfile2.cpp b/HtmlFile2/htmlfile2.cpp
index 926e3295a0..775c7fec8c 100644
--- a/HtmlFile2/htmlfile2.cpp
+++ b/HtmlFile2/htmlfile2.cpp
@@ -2288,6 +2288,9 @@ private:
 			{
 				oNode.m_wsId = EncodeXmlString(m_oLightReader.GetText());
 				WriteBookmark(oXml, oNode.m_wsId);
+
+				if (!m_oStylesCalculator.HaveStylesById(oNode.m_wsId))
+					oNode.m_wsId.clear();
 			}
 			else if(sName == L"style")
 				oNode.m_wsStyle += m_oLightReader.GetText();