diff --git a/Userland/Libraries/LibWeb/CSS/Parser/Tokenizer.cpp b/Userland/Libraries/LibWeb/CSS/Parser/Tokenizer.cpp
index 545ee4cfbd..b0736ae489 100644
--- a/Userland/Libraries/LibWeb/CSS/Parser/Tokenizer.cpp
+++ b/Userland/Libraries/LibWeb/CSS/Parser/Tokenizer.cpp
@@ -309,6 +309,30 @@ U32Triplet Tokenizer::peek_triplet() const
     return values;
 }
 
+U32Twin Tokenizer::start_of_input_stream_twin()
+{
+    U32Twin twin;
+    // FIXME: Reconsuming just to read the current code point again is weird.
+    reconsume_current_input_code_point();
+    twin.first = next_code_point();
+    twin.second = peek_code_point();
+
+    return twin;
+}
+
+U32Triplet Tokenizer::start_of_input_stream_triplet()
+{
+    U32Triplet triplet;
+    // FIXME: Reconsuming just to read the current code point again is weird.
+    reconsume_current_input_code_point();
+    triplet.first = next_code_point();
+    auto next_two = peek_twin();
+    triplet.second = next_two.first;
+    triplet.third = next_two.second;
+
+    return triplet;
+}
+
 Token Tokenizer::create_new_token(Token::Type type)
 {
     Token token = {};
diff --git a/Userland/Libraries/LibWeb/CSS/Parser/Tokenizer.h b/Userland/Libraries/LibWeb/CSS/Parser/Tokenizer.h
index 1e60df0a7c..2d54d1ea8e 100644
--- a/Userland/Libraries/LibWeb/CSS/Parser/Tokenizer.h
+++ b/Userland/Libraries/LibWeb/CSS/Parser/Tokenizer.h
@@ -79,6 +79,9 @@ private:
     [[nodiscard]] U32Twin peek_twin() const;
     [[nodiscard]] U32Triplet peek_triplet() const;
 
+    [[nodiscard]] U32Twin start_of_input_stream_twin();
+    [[nodiscard]] U32Triplet start_of_input_stream_triplet();
+
     [[nodiscard]] static Token create_new_token(Token::Type);
     [[nodiscard]] static Token create_value_token(Token::Type, String value);
     [[nodiscard]] static Token create_value_token(Token::Type, u32 value);