diff --git a/test/css/samples/general-siblings-combinator-former-element-in-slot/expected.css b/test/css/samples/general-siblings-combinator-former-element-in-slot/expected.css
new file mode 100644
index 0000000000..f365e3dc24
--- /dev/null
+++ b/test/css/samples/general-siblings-combinator-former-element-in-slot/expected.css
@@ -0,0 +1 @@
+h1.svelte-xyz~p.svelte-xyz{color:red}
\ No newline at end of file
diff --git a/test/css/samples/general-siblings-combinator-former-element-in-slot/input.svelte b/test/css/samples/general-siblings-combinator-former-element-in-slot/input.svelte
new file mode 100644
index 0000000000..66a8a09796
--- /dev/null
+++ b/test/css/samples/general-siblings-combinator-former-element-in-slot/input.svelte
@@ -0,0 +1,12 @@
+<slot>
+  <h1>Heading 1</h1>
+</slot>
+<span>Span 1</span>
+<span>Span 2</span>
+<p>Paragraph 2</p>
+
+<style>
+  h1 ~ p {
+    color: red;
+  }
+</style>
diff --git a/test/css/samples/general-siblings-combinator-nested-slots/expected.css b/test/css/samples/general-siblings-combinator-nested-slots/expected.css
new file mode 100644
index 0000000000..f365e3dc24
--- /dev/null
+++ b/test/css/samples/general-siblings-combinator-nested-slots/expected.css
@@ -0,0 +1 @@
+h1.svelte-xyz~p.svelte-xyz{color:red}
\ No newline at end of file
diff --git a/test/css/samples/general-siblings-combinator-nested-slots/input.svelte b/test/css/samples/general-siblings-combinator-nested-slots/input.svelte
new file mode 100644
index 0000000000..d820705782
--- /dev/null
+++ b/test/css/samples/general-siblings-combinator-nested-slots/input.svelte
@@ -0,0 +1,18 @@
+<slot>
+	<slot>
+		<h1>Heading 1</h1>
+	</slot>
+</slot>
+<span>Span 1</span>
+<span>Span 2</span>
+<slot>
+	<slot>
+		<p>Paragraph 2</p>
+	</slot>
+</slot>
+
+<style>
+  h1 ~ p {
+    color: red;
+  }
+</style>
diff --git a/test/css/samples/general-siblings-combinator-selects-slot-fallback/expected.css b/test/css/samples/general-siblings-combinator-selects-slot-fallback/expected.css
new file mode 100644
index 0000000000..f365e3dc24
--- /dev/null
+++ b/test/css/samples/general-siblings-combinator-selects-slot-fallback/expected.css
@@ -0,0 +1 @@
+h1.svelte-xyz~p.svelte-xyz{color:red}
\ No newline at end of file
diff --git a/test/css/samples/general-siblings-combinator-selects-slot-fallback/input.svelte b/test/css/samples/general-siblings-combinator-selects-slot-fallback/input.svelte
new file mode 100644
index 0000000000..61d829d257
--- /dev/null
+++ b/test/css/samples/general-siblings-combinator-selects-slot-fallback/input.svelte
@@ -0,0 +1,12 @@
+<h1>Heading 1</h1>
+<span>Span 1</span>
+<span>Span 2</span>
+<slot>
+  <p>Paragraph 2</p>
+</slot>
+
+<style>
+  h1 ~ p {
+    color: red;
+  }
+</style>
diff --git a/test/css/samples/siblings-combinator-former-element-in-slot/expected.css b/test/css/samples/siblings-combinator-former-element-in-slot/expected.css
new file mode 100644
index 0000000000..d523f1d533
--- /dev/null
+++ b/test/css/samples/siblings-combinator-former-element-in-slot/expected.css
@@ -0,0 +1 @@
+h1.svelte-xyz+span.svelte-xyz{color:red}
\ No newline at end of file
diff --git a/test/css/samples/siblings-combinator-former-element-in-slot/input.svelte b/test/css/samples/siblings-combinator-former-element-in-slot/input.svelte
new file mode 100644
index 0000000000..8cbf9bd709
--- /dev/null
+++ b/test/css/samples/siblings-combinator-former-element-in-slot/input.svelte
@@ -0,0 +1,10 @@
+<slot>
+  <h1>test</h1>
+</slot>
+<span>Hello</span>
+
+<style>
+  h1 + span {
+    color: red;
+  }
+</style>
diff --git a/test/css/samples/siblings-combinator-nested-slots/expected.css b/test/css/samples/siblings-combinator-nested-slots/expected.css
new file mode 100644
index 0000000000..d523f1d533
--- /dev/null
+++ b/test/css/samples/siblings-combinator-nested-slots/expected.css
@@ -0,0 +1 @@
+h1.svelte-xyz+span.svelte-xyz{color:red}
\ No newline at end of file
diff --git a/test/css/samples/siblings-combinator-nested-slots/input.svelte b/test/css/samples/siblings-combinator-nested-slots/input.svelte
new file mode 100644
index 0000000000..cb8cbbbe08
--- /dev/null
+++ b/test/css/samples/siblings-combinator-nested-slots/input.svelte
@@ -0,0 +1,18 @@
+<slot>
+  <slot>
+    <slot>
+      <h1>test</h1>
+    </slot>
+  </slot>
+</slot>
+<slot>
+  <slot>
+    <span>Hello</span>
+  </slot>
+</slot>
+
+<style>
+  h1 + span {
+    color: red;
+  }
+</style>
diff --git a/test/css/samples/siblings-combinator-selects-slot-fallback/expected.css b/test/css/samples/siblings-combinator-selects-slot-fallback/expected.css
new file mode 100644
index 0000000000..d523f1d533
--- /dev/null
+++ b/test/css/samples/siblings-combinator-selects-slot-fallback/expected.css
@@ -0,0 +1 @@
+h1.svelte-xyz+span.svelte-xyz{color:red}
\ No newline at end of file
diff --git a/test/css/samples/siblings-combinator-selects-slot-fallback/input.svelte b/test/css/samples/siblings-combinator-selects-slot-fallback/input.svelte
new file mode 100644
index 0000000000..7fa02c8305
--- /dev/null
+++ b/test/css/samples/siblings-combinator-selects-slot-fallback/input.svelte
@@ -0,0 +1,10 @@
+<h1>test</h1>
+<slot>
+  <span>Hello</span>
+</slot>
+
+<style>
+  h1 + span {
+    color: red;
+  }
+</style>