diff --git a/ejercicios-clase-8.js b/ejercicios-clase-8.js
index 037e981..c7f82d0 100644
--- a/ejercicios-clase-8.js
+++ b/ejercicios-clase-8.js
@@ -23,4 +23,15 @@ const addItem = (a) => {
     const newItem = document.createElement('li');
     newItem.textContent = a;
     list.appendChild(newItem);
+}
+
+// Ejercicio 4
+
+const highlight = () => {
+    const paragraphs = document.querySelectorAll('#parrafos p');
+    paragraphs.forEach((p) => {
+        if (p.textContent.toLowerCase().includes('importante')) {
+            p.classList.add('destacado');
+        }
+    });
 }
\ No newline at end of file