diff --git a/src/utils/isInViewport.ts b/src/utils/isInViewport.ts
new file mode 100644
index 0000000..ffc2b95
--- /dev/null
+++ b/src/utils/isInViewport.ts
@@ -0,0 +1,10 @@
+export default function isInViewport(element: HTMLElement) {
+  const rect = element.getBoundingClientRect();
+  return (
+    rect.top >= 0 &&
+    rect.left >= 0 &&
+    rect.bottom <=
+      (window.innerHeight || document.documentElement.clientHeight) &&
+    rect.right <= (window.innerWidth || document.documentElement.clientWidth)
+  );
+}