diff --git a/Libraries/LibWeb/CMakeLists.txt b/Libraries/LibWeb/CMakeLists.txt
index 61cce0f1db..a793a7748c 100644
--- a/Libraries/LibWeb/CMakeLists.txt
+++ b/Libraries/LibWeb/CMakeLists.txt
@@ -9,7 +9,10 @@ set(SOURCES
     Bindings/XMLHttpRequestConstructor.cpp
     Bindings/XMLHttpRequestPrototype.cpp
     Bindings/XMLHttpRequestWrapper.cpp
+    CSS/DefaultStyleSheetSource.cpp
     CSS/Length.cpp
+    CSS/PropertyID.cpp
+    CSS/PropertyID.h
     CSS/Selector.cpp
     CSS/SelectorEngine.cpp
     CSS/StyleDeclaration.cpp
@@ -65,6 +68,12 @@ set(SOURCES
     HTML/HTMLTableRowElement.cpp
     HTML/HTMLTitleElement.cpp
     HTML/ImageData.cpp
+    HTML/Parser/Entities.cpp
+    HTML/Parser/HTMLDocumentParser.cpp
+    HTML/Parser/HTMLToken.cpp
+    HTML/Parser/HTMLTokenizer.cpp
+    HTML/Parser/ListOfActiveFormattingElements.cpp
+    HTML/Parser/StackOfOpenElements.cpp
     Layout/BoxModelMetrics.cpp
     Layout/LayoutBlock.cpp
     Layout/LayoutBox.cpp
@@ -99,25 +108,16 @@ set(SOURCES
     PageView.cpp
     Painting/StackingContext.cpp
     Parser/CSSParser.cpp
-    Parser/Entities.cpp
-    Parser/HTMLDocumentParser.cpp
-    Parser/HTMLToken.cpp
-    Parser/HTMLTokenizer.cpp
-    Parser/ListOfActiveFormattingElements.cpp
-    Parser/StackOfOpenElements.cpp
-    StylePropertiesModel.cpp
     SVG/SVGElement.cpp
     SVG/SVGGeometryElement.cpp
     SVG/SVGGraphicsElement.cpp
     SVG/SVGPathElement.cpp
     SVG/SVGSVGElement.cpp
     SVG/TagNames.cpp
+    StylePropertiesModel.cpp
     URLEncoder.cpp
-    CSS/PropertyID.h
-    CSS/PropertyID.cpp
-    CSS/DefaultStyleSheetSource.cpp
-    WebContentView.cpp
     WebContentClient.cpp
+    WebContentView.cpp
 )
 
 set(GENERATED_SOURCES
diff --git a/Libraries/LibWeb/DOM/Element.cpp b/Libraries/LibWeb/DOM/Element.cpp
index abfd3ccef1..78a2fc7120 100644
--- a/Libraries/LibWeb/DOM/Element.cpp
+++ b/Libraries/LibWeb/DOM/Element.cpp
@@ -41,7 +41,7 @@
 #include <LibWeb/Layout/LayoutTableRow.h>
 #include <LibWeb/Layout/LayoutTableRowGroup.h>
 #include <LibWeb/Layout/LayoutTreeBuilder.h>
-#include <LibWeb/Parser/HTMLDocumentParser.h>
+#include <LibWeb/HTML/Parser/HTMLDocumentParser.h>
 
 namespace Web::DOM {
 
diff --git a/Libraries/LibWeb/HTML/HTMLIFrameElement.cpp b/Libraries/LibWeb/HTML/HTMLIFrameElement.cpp
index d365210a70..b4534898b9 100644
--- a/Libraries/LibWeb/HTML/HTMLIFrameElement.cpp
+++ b/Libraries/LibWeb/HTML/HTMLIFrameElement.cpp
@@ -37,7 +37,7 @@
 #include <LibWeb/Layout/LayoutWidget.h>
 #include <LibWeb/Loader/ResourceLoader.h>
 #include <LibWeb/PageView.h>
-#include <LibWeb/Parser/HTMLDocumentParser.h>
+#include <LibWeb/HTML/Parser/HTMLDocumentParser.h>
 
 namespace Web::HTML {
 
diff --git a/Libraries/LibWeb/Parser/Entities.cpp b/Libraries/LibWeb/HTML/Parser/Entities.cpp
similarity index 99%
rename from Libraries/LibWeb/Parser/Entities.cpp
rename to Libraries/LibWeb/HTML/Parser/Entities.cpp
index 20b7d2750f..088d6f9bc9 100644
--- a/Libraries/LibWeb/Parser/Entities.cpp
+++ b/Libraries/LibWeb/HTML/Parser/Entities.cpp
@@ -26,7 +26,7 @@
 
 #include <AK/LogStream.h>
 #include <AK/StringView.h>
-#include <LibWeb/Parser/Entities.h>
+#include <LibWeb/HTML/Parser/Entities.h>
 
 namespace Web {
 namespace HTML {
diff --git a/Libraries/LibWeb/Parser/Entities.h b/Libraries/LibWeb/HTML/Parser/Entities.h
similarity index 100%
rename from Libraries/LibWeb/Parser/Entities.h
rename to Libraries/LibWeb/HTML/Parser/Entities.h
diff --git a/Libraries/LibWeb/Parser/HTMLDocumentParser.cpp b/Libraries/LibWeb/HTML/Parser/HTMLDocumentParser.cpp
similarity index 99%
rename from Libraries/LibWeb/Parser/HTMLDocumentParser.cpp
rename to Libraries/LibWeb/HTML/Parser/HTMLDocumentParser.cpp
index 96da68d5cf..59aaef631a 100644
--- a/Libraries/LibWeb/Parser/HTMLDocumentParser.cpp
+++ b/Libraries/LibWeb/HTML/Parser/HTMLDocumentParser.cpp
@@ -36,8 +36,8 @@
 #include <LibWeb/HTML/HTMLFormElement.h>
 #include <LibWeb/HTML/HTMLHeadElement.h>
 #include <LibWeb/HTML/HTMLScriptElement.h>
-#include <LibWeb/Parser/HTMLDocumentParser.h>
-#include <LibWeb/Parser/HTMLToken.h>
+#include <LibWeb/HTML/Parser/HTMLDocumentParser.h>
+#include <LibWeb/HTML/Parser/HTMLToken.h>
 
 namespace Web::HTML {
 
diff --git a/Libraries/LibWeb/Parser/HTMLDocumentParser.h b/Libraries/LibWeb/HTML/Parser/HTMLDocumentParser.h
similarity index 97%
rename from Libraries/LibWeb/Parser/HTMLDocumentParser.h
rename to Libraries/LibWeb/HTML/Parser/HTMLDocumentParser.h
index ebcfd9ec46..bc75cf4990 100644
--- a/Libraries/LibWeb/Parser/HTMLDocumentParser.h
+++ b/Libraries/LibWeb/HTML/Parser/HTMLDocumentParser.h
@@ -28,9 +28,9 @@
 
 #include <AK/NonnullRefPtrVector.h>
 #include <LibWeb/DOM/Node.h>
-#include <LibWeb/Parser/HTMLTokenizer.h>
-#include <LibWeb/Parser/ListOfActiveFormattingElements.h>
-#include <LibWeb/Parser/StackOfOpenElements.h>
+#include <LibWeb/HTML/Parser/HTMLTokenizer.h>
+#include <LibWeb/HTML/Parser/ListOfActiveFormattingElements.h>
+#include <LibWeb/HTML/Parser/StackOfOpenElements.h>
 
 namespace Web::HTML {
 
diff --git a/Libraries/LibWeb/Parser/HTMLToken.cpp b/Libraries/LibWeb/HTML/Parser/HTMLToken.cpp
similarity index 98%
rename from Libraries/LibWeb/Parser/HTMLToken.cpp
rename to Libraries/LibWeb/HTML/Parser/HTMLToken.cpp
index 2a82660297..aa9f33c35e 100644
--- a/Libraries/LibWeb/Parser/HTMLToken.cpp
+++ b/Libraries/LibWeb/HTML/Parser/HTMLToken.cpp
@@ -24,7 +24,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <LibWeb/Parser/HTMLToken.h>
+#include <LibWeb/HTML/Parser/HTMLToken.h>
 
 namespace Web::HTML {
 
diff --git a/Libraries/LibWeb/Parser/HTMLToken.h b/Libraries/LibWeb/HTML/Parser/HTMLToken.h
similarity index 100%
rename from Libraries/LibWeb/Parser/HTMLToken.h
rename to Libraries/LibWeb/HTML/Parser/HTMLToken.h
diff --git a/Libraries/LibWeb/Parser/HTMLTokenizer.cpp b/Libraries/LibWeb/HTML/Parser/HTMLTokenizer.cpp
similarity index 99%
rename from Libraries/LibWeb/Parser/HTMLTokenizer.cpp
rename to Libraries/LibWeb/HTML/Parser/HTMLTokenizer.cpp
index 7a03e77aa5..cdc8ec8044 100644
--- a/Libraries/LibWeb/Parser/HTMLTokenizer.cpp
+++ b/Libraries/LibWeb/HTML/Parser/HTMLTokenizer.cpp
@@ -25,9 +25,9 @@
  */
 
 #include <LibTextCodec/Decoder.h>
-#include <LibWeb/Parser/Entities.h>
-#include <LibWeb/Parser/HTMLToken.h>
-#include <LibWeb/Parser/HTMLTokenizer.h>
+#include <LibWeb/HTML/Parser/Entities.h>
+#include <LibWeb/HTML/Parser/HTMLToken.h>
+#include <LibWeb/HTML/Parser/HTMLTokenizer.h>
 #include <ctype.h>
 
 namespace Web::HTML {
@@ -2215,12 +2215,7 @@ _StartOfFunction:
                         return false;
 
                     // FIXME: Is there a better way of doing this?
-                    return m_temporary_buffer[0] == 's' &&
-                           m_temporary_buffer[1] == 'c' &&
-                           m_temporary_buffer[2] == 'r' &&
-                           m_temporary_buffer[3] == 'i' &&
-                           m_temporary_buffer[4] == 'p' &&
-                           m_temporary_buffer[5] == 't';
+                    return m_temporary_buffer[0] == 's' && m_temporary_buffer[1] == 'c' && m_temporary_buffer[2] == 'r' && m_temporary_buffer[3] == 'i' && m_temporary_buffer[4] == 'p' && m_temporary_buffer[5] == 't';
                 };
                 ON_WHITESPACE
                 {
@@ -2366,12 +2361,7 @@ _StartOfFunction:
                         return false;
 
                     // FIXME: Is there a better way of doing this?
-                    return m_temporary_buffer[0] == 's' &&
-                           m_temporary_buffer[1] == 'c' &&
-                           m_temporary_buffer[2] == 'r' &&
-                           m_temporary_buffer[3] == 'i' &&
-                           m_temporary_buffer[4] == 'p' &&
-                           m_temporary_buffer[5] == 't';
+                    return m_temporary_buffer[0] == 's' && m_temporary_buffer[1] == 'c' && m_temporary_buffer[2] == 'r' && m_temporary_buffer[3] == 'i' && m_temporary_buffer[4] == 'p' && m_temporary_buffer[5] == 't';
                 };
                 ON_WHITESPACE
                 {
diff --git a/Libraries/LibWeb/Parser/HTMLTokenizer.h b/Libraries/LibWeb/HTML/Parser/HTMLTokenizer.h
similarity index 99%
rename from Libraries/LibWeb/Parser/HTMLTokenizer.h
rename to Libraries/LibWeb/HTML/Parser/HTMLTokenizer.h
index 1f8b8e6648..f4aa69ab91 100644
--- a/Libraries/LibWeb/Parser/HTMLTokenizer.h
+++ b/Libraries/LibWeb/HTML/Parser/HTMLTokenizer.h
@@ -31,7 +31,7 @@
 #include <AK/Types.h>
 #include <AK/Utf8View.h>
 #include <LibWeb/Forward.h>
-#include <LibWeb/Parser/HTMLToken.h>
+#include <LibWeb/HTML/Parser/HTMLToken.h>
 
 namespace Web::HTML {
 
diff --git a/Libraries/LibWeb/Parser/ListOfActiveFormattingElements.cpp b/Libraries/LibWeb/HTML/Parser/ListOfActiveFormattingElements.cpp
similarity index 97%
rename from Libraries/LibWeb/Parser/ListOfActiveFormattingElements.cpp
rename to Libraries/LibWeb/HTML/Parser/ListOfActiveFormattingElements.cpp
index 9594fd0024..ae38e2288e 100644
--- a/Libraries/LibWeb/Parser/ListOfActiveFormattingElements.cpp
+++ b/Libraries/LibWeb/HTML/Parser/ListOfActiveFormattingElements.cpp
@@ -25,7 +25,7 @@
  */
 
 #include <LibWeb/DOM/Element.h>
-#include <LibWeb/Parser/ListOfActiveFormattingElements.h>
+#include <LibWeb/HTML/Parser/ListOfActiveFormattingElements.h>
 
 namespace Web::HTML {
 
diff --git a/Libraries/LibWeb/Parser/ListOfActiveFormattingElements.h b/Libraries/LibWeb/HTML/Parser/ListOfActiveFormattingElements.h
similarity index 100%
rename from Libraries/LibWeb/Parser/ListOfActiveFormattingElements.h
rename to Libraries/LibWeb/HTML/Parser/ListOfActiveFormattingElements.h
diff --git a/Libraries/LibWeb/Parser/StackOfOpenElements.cpp b/Libraries/LibWeb/HTML/Parser/StackOfOpenElements.cpp
similarity index 98%
rename from Libraries/LibWeb/Parser/StackOfOpenElements.cpp
rename to Libraries/LibWeb/HTML/Parser/StackOfOpenElements.cpp
index 9624c483b8..bd58f25062 100644
--- a/Libraries/LibWeb/Parser/StackOfOpenElements.cpp
+++ b/Libraries/LibWeb/HTML/Parser/StackOfOpenElements.cpp
@@ -25,8 +25,8 @@
  */
 
 #include <LibWeb/DOM/Element.h>
-#include <LibWeb/Parser/HTMLDocumentParser.h>
-#include <LibWeb/Parser/StackOfOpenElements.h>
+#include <LibWeb/HTML/Parser/HTMLDocumentParser.h>
+#include <LibWeb/HTML/Parser/StackOfOpenElements.h>
 
 namespace Web::HTML {
 
diff --git a/Libraries/LibWeb/Parser/StackOfOpenElements.h b/Libraries/LibWeb/HTML/Parser/StackOfOpenElements.h
similarity index 100%
rename from Libraries/LibWeb/Parser/StackOfOpenElements.h
rename to Libraries/LibWeb/HTML/Parser/StackOfOpenElements.h
diff --git a/Libraries/LibWeb/Loader/FrameLoader.cpp b/Libraries/LibWeb/Loader/FrameLoader.cpp
index 811da754b8..0d34ce9034 100644
--- a/Libraries/LibWeb/Loader/FrameLoader.cpp
+++ b/Libraries/LibWeb/Loader/FrameLoader.cpp
@@ -35,7 +35,7 @@
 #include <LibWeb/Loader/FrameLoader.h>
 #include <LibWeb/Loader/ResourceLoader.h>
 #include <LibWeb/Page.h>
-#include <LibWeb/Parser/HTMLDocumentParser.h>
+#include <LibWeb/HTML/Parser/HTMLDocumentParser.h>
 
 namespace Web {
 
diff --git a/Libraries/LibWeb/PageView.cpp b/Libraries/LibWeb/PageView.cpp
index 69ecd7ea98..40e731adbf 100644
--- a/Libraries/LibWeb/PageView.cpp
+++ b/Libraries/LibWeb/PageView.cpp
@@ -51,7 +51,7 @@
 #include <LibWeb/Loader/ResourceLoader.h>
 #include <LibWeb/PageView.h>
 #include <LibWeb/Painting/PaintContext.h>
-#include <LibWeb/Parser/HTMLDocumentParser.h>
+#include <LibWeb/HTML/Parser/HTMLDocumentParser.h>
 #include <LibWeb/UIEvents/MouseEvent.h>
 #include <stdio.h>
 
diff --git a/Userland/test-web.cpp b/Userland/test-web.cpp
index 3a5aba070c..5f06057afc 100644
--- a/Userland/test-web.cpp
+++ b/Userland/test-web.cpp
@@ -43,7 +43,7 @@
 #include <LibJS/Runtime/JSONObject.h>
 #include <LibJS/Runtime/MarkedValueList.h>
 #include <LibWeb/PageView.h>
-#include <LibWeb/Parser/HTMLDocumentParser.h>
+#include <LibWeb/HTML/Parser/HTMLDocumentParser.h>
 #include <LibWeb/Loader/ResourceLoader.h>
 #include <sys/time.h>