diff --git a/Userland/Libraries/LibWeb/CSS/CSSImportRule.cpp b/Userland/Libraries/LibWeb/CSS/CSSImportRule.cpp
index 2c0485f14b..80822dfa43 100644
--- a/Userland/Libraries/LibWeb/CSS/CSSImportRule.cpp
+++ b/Userland/Libraries/LibWeb/CSS/CSSImportRule.cpp
@@ -1,18 +1,27 @@
 /*
  * Copyright (c) 2021, the SerenityOS developers.
+ * Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Debug.h>
 #include <AK/URL.h>
 #include <LibWeb/CSS/CSSImportRule.h>
-#include <LibWeb/CSS/CSSStyleSheet.h>
+#include <LibWeb/CSS/Parser/Parser.h>
+#include <LibWeb/DOM/Document.h>
+#include <LibWeb/Loader/ResourceLoader.h>
 
 namespace Web::CSS {
 
-CSSImportRule::CSSImportRule(AK::URL url)
+CSSImportRule::CSSImportRule(AK::URL url, DOM::Document& document)
     : m_url(move(url))
+    , m_document(document)
 {
+    dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Loading import URL: {}", m_url);
+    auto request = LoadRequest::create_for_url_on_page(m_url, document.page());
+    set_resource(ResourceLoader::the().load_resource(Resource::Type::Generic, request));
+    m_document_load_event_delayer.emplace(m_document);
 }
 
 CSSImportRule::~CSSImportRule()
@@ -42,4 +51,32 @@ String CSSImportRule::serialized() const
     return builder.to_string();
 }
 
+void CSSImportRule::resource_did_fail()
+{
+    dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Resource did fail. URL: {}", resource()->url());
+
+    m_document_load_event_delayer.clear();
+}
+
+void CSSImportRule::resource_did_load()
+{
+    VERIFY(resource());
+
+    m_document_load_event_delayer.clear();
+
+    if (!resource()->has_encoded_data()) {
+        dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Resource did load, no encoded data. URL: {}", resource()->url());
+    } else {
+        dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Resource did load, has encoded data. URL: {}", resource()->url());
+    }
+
+    auto sheet = parse_css(CSS::ParsingContext(m_document), resource()->encoded_data());
+    if (!sheet) {
+        dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Failed to parse stylesheet: {}", resource()->url());
+        return;
+    }
+
+    m_style_sheet = move(sheet);
+}
+
 }
diff --git a/Userland/Libraries/LibWeb/CSS/CSSImportRule.h b/Userland/Libraries/LibWeb/CSS/CSSImportRule.h
index f633701037..5ab22f9d8d 100644
--- a/Userland/Libraries/LibWeb/CSS/CSSImportRule.h
+++ b/Userland/Libraries/LibWeb/CSS/CSSImportRule.h
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2021, the SerenityOS developers.
+ * Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -9,17 +10,20 @@
 #include <AK/URL.h>
 #include <LibWeb/CSS/CSSRule.h>
 #include <LibWeb/CSS/CSSStyleSheet.h>
+#include <LibWeb/DOM/DocumentLoadEventDelayer.h>
 
 namespace Web::CSS {
 
-class CSSImportRule : public CSSRule {
+class CSSImportRule
+    : public CSSRule
+    , public ResourceClient {
     AK_MAKE_NONCOPYABLE(CSSImportRule);
     AK_MAKE_NONMOVABLE(CSSImportRule);
 
 public:
-    static NonnullRefPtr<CSSImportRule> create(AK::URL url)
+    static NonnullRefPtr<CSSImportRule> create(AK::URL url, DOM::Document& document)
     {
-        return adopt_ref(*new CSSImportRule(move(url)));
+        return adopt_ref(*new CSSImportRule(move(url), document));
     }
 
     ~CSSImportRule();
@@ -35,11 +39,17 @@ public:
     virtual Type type() const { return Type::Import; };
 
 private:
-    explicit CSSImportRule(AK::URL);
+    explicit CSSImportRule(AK::URL, DOM::Document&);
 
     virtual String serialized() const override;
 
+    // ^ResourceClient
+    virtual void resource_did_fail() override;
+    virtual void resource_did_load() override;
+
     AK::URL m_url;
+    DOM::Document& m_document;
+    Optional<DOM::DocumentLoadEventDelayer> m_document_load_event_delayer;
     RefPtr<CSSStyleSheet> m_style_sheet;
 };
 
diff --git a/Userland/Libraries/LibWeb/CSS/Parser/Parser.cpp b/Userland/Libraries/LibWeb/CSS/Parser/Parser.cpp
index 97188ede9b..498643eaa6 100644
--- a/Userland/Libraries/LibWeb/CSS/Parser/Parser.cpp
+++ b/Userland/Libraries/LibWeb/CSS/Parser/Parser.cpp
@@ -1747,7 +1747,7 @@ RefPtr<CSSRule> Parser::convert_to_rule(NonnullRefPtr<StyleRule> rule)
             }
 
             if (url.has_value())
-                return CSSImportRule::create(url.value());
+                return CSSImportRule::create(url.value(), const_cast<DOM::Document&>(*m_context.document()));
             else
                 dbgln("Unable to parse url from @import rule");