diff --git a/.changeset/sour-feet-carry.md b/.changeset/sour-feet-carry.md
new file mode 100644
index 0000000000..d5569efd36
--- /dev/null
+++ b/.changeset/sour-feet-carry.md
@@ -0,0 +1,5 @@
+---
+'svelte': minor
+---
+
+feat: migrate css `:id`, `:where``:not` and `:has`
diff --git a/packages/svelte/src/compiler/migrate/index.js b/packages/svelte/src/compiler/migrate/index.js
index 057020d730..bb2ba1d5f7 100644
--- a/packages/svelte/src/compiler/migrate/index.js
+++ b/packages/svelte/src/compiler/migrate/index.js
@@ -317,7 +317,15 @@ export function migrate(source, { filename } = {}) {
 		if (!parsed.instance && need_script) {
 			str.appendRight(insertion_point, '\n</script>\n\n');
 		}
-		return { code: str.toString() };
+		return {
+			code: str
+				.toString()
+				// for some reason replacing the magic string doesn't work
+				.replaceAll(
+					/(?<=<style[^>]*>[\s\S]*?:(?:is|not|where|has)\()([^)]+)(?=[\s\S]*?<\/style>)/gm,
+					':global($1)'
+				)
+		};
 	} catch (e) {
 		if (!(e instanceof MigrationError)) {
 			// eslint-disable-next-line no-console
diff --git a/packages/svelte/tests/migrate/samples/is-not-where-has/input.svelte b/packages/svelte/tests/migrate/samples/is-not-where-has/input.svelte
new file mode 100644
index 0000000000..d3ebf6bb7b
--- /dev/null
+++ b/packages/svelte/tests/migrate/samples/is-not-where-has/input.svelte
@@ -0,0 +1,20 @@
+<style lang="postcss">
+	div:has(span){}
+	div > :not(span){}
+	div > :is(span){}
+	div > :where(span){}
+
+	div:has(:is(span)){}
+	div > :not(:is(span)){}
+	div > :is(:is(span)){}
+	div > :where(:is(span)){}
+
+	div{
+		p:has(&){
+
+		}
+		:not(span > *){
+			:where(form){}
+		}
+	}
+</style>
\ No newline at end of file
diff --git a/packages/svelte/tests/migrate/samples/is-not-where-has/output.svelte b/packages/svelte/tests/migrate/samples/is-not-where-has/output.svelte
new file mode 100644
index 0000000000..79f29c8fbd
--- /dev/null
+++ b/packages/svelte/tests/migrate/samples/is-not-where-has/output.svelte
@@ -0,0 +1,20 @@
+<style lang="postcss">
+	div:has(:global(span)){}
+	div > :not(:global(span)){}
+	div > :is(:global(span)){}
+	div > :where(:global(span)){}
+
+	div:has(:global(:is(span))){}
+	div > :not(:global(:is(span))){}
+	div > :is(:global(:is(span))){}
+	div > :where(:global(:is(span))){}
+
+	div{
+		p:has(:global(&)){
+
+		}
+		:not(:global(span > *)){
+			:where(:global(form)){}
+		}
+	}
+</style>
\ No newline at end of file