diff --git a/dom/first-words_test.js b/dom/first-words_test.js
new file mode 100644
index 00000000..c0895bc0
--- /dev/null
+++ b/dom/first-words_test.js
@@ -0,0 +1,46 @@
+export const tests = []
+
+tests.push(async ({ eq, page }) => {
+  // check the class words has been added in the CSS
+  await eq.css('.words', { textAlign: 'center', fontFamily: 'sans-serif' })
+})
+
+tests.push(async ({ eq, page }) => {
+  // check the torso element is initially empty
+  const isEmpty = await page.$eval('#torso', (node) => !node.children.length)
+  eq(isEmpty, true)
+})
+
+tests.push(async ({ eq, page }) => {
+  // click on the button
+  const button = await page.$('button#speak-button')
+  await button.click()
+
+  // check a new text element is added in the torso
+  const torsoChildren = await page.$eval('#torso', (node) =>
+    [...node.children].map((child) => ({
+      tag: child.tagName,
+      text: child.textContent,
+      class: child.className,
+    })),
+  )
+  eq(torsoChildren, [textNode])
+})
+
+tests.push(async ({ eq, page }) => {
+  // click a second time on the button
+  const button = await page.$('button#speak-button')
+  await button.click()
+
+  // check a second new text element is added in the torso
+  const torsoChildren = await page.$eval('#torso', (node) =>
+    [...node.children].map((child) => ({
+      tag: child.tagName,
+      text: child.textContent,
+      class: child.className,
+    })),
+  )
+  eq(torsoChildren, [textNode, textNode])
+})
+
+const textNode = { tag: 'DIV', text: 'Hello there!', class: 'words' }