diff --git a/javascript/introduction-to-js-1/troubleshooting/number-game-errors.html b/javascript/introduction-to-js-1/troubleshooting/number-game-errors.html
index cae7f55a3..3a01026ef 100644
--- a/javascript/introduction-to-js-1/troubleshooting/number-game-errors.html
+++ b/javascript/introduction-to-js-1/troubleshooting/number-game-errors.html
@@ -23,94 +23,92 @@
   </head>
 
   <body>
-      <h1>Number guessing game</h1>
-
-      <p>We have selected a random number between 1 and 100. See if you can guess it in 10 turns or less. We'll tell you if your guess was too high or too low.</p>
-
-<div class="form">
-  <label for="guessField">Enter a guess: </label>
-  <input type="text" id="guessField" class="guessField">
-  <input type="submit" value="Submit guess" class="guessSubmit">
-</div>
-
-<div class="resultParas">
-  <p class="guesses"></p>
-  <p class="lastResult"></p>
-  <p class="lowOrHi"></p>
-</div>
-
-</body>
-
-<script>
-  let randomNumber = Math.floor(Math.random()) + 1;
-
-  const guesses = document.querySelector('.guesses');
-  const lastResult = document.querySelector('.lastResult');
-  const lowOrHi = document.querySelector('lowOrHi');
-  const guessSubmit = document.querySelector('.guessSubmit');
-  const guessField = document.querySelector('.guessField');
-
-  let guessCount = 1;
-  let resetButton;
-
-  function checkGuess() {
-
-    const userGuess = Number(guessField.value);
-    if(guessCount === 1) {
-      guesses.textContent = 'Previous guesses: ';
-    }
-    guesses.textContent += userGuess + ' ';
-
-    if(userGuess === randomNumber) {
-      lastResult.textContent = 'Congratulations! You got it right!';
-      lastResult.style.backgroundColor = 'green';
-      lowOrHi.textContent = '';
-      setGameOver();
-    } else if(guessCount === 10) {
-      lastResult.textContent = '!!!GAME OVER!!!';
-      setGameOver();
-    } else {
-      lastResult.textContent = 'Wrong!';
-      lastResult.style.backgroundColor = 'red';
-      if(userGuess < randomNumber) {
-        lowOrHi.textContent = 'Last guess was too low!';
-      } else if(userGuess > randomNumber) {
-        lowOrHi.textContent = 'Last guess was too high!';
+    <h1>Number guessing game</h1>
+
+    <p>We have selected a random number between 1 and 100. See if you can guess it in 10 turns or less. We'll tell you if your guess was too high or too low.</p>
+
+    <div class="form">
+      <label for="guessField">Enter a guess: </label>
+      <input type="text" id="guessField" class="guessField">
+      <input type="submit" value="Submit guess" class="guessSubmit">
+    </div>
+
+    <div class="resultParas">
+      <p class="guesses"></p>
+      <p class="lastResult"></p>
+      <p class="lowOrHi"></p>
+    </div>
+
+    <script>
+      let randomNumber = Math.floor(Math.random()) + 1;
+
+      const guesses = document.querySelector('.guesses');
+      const lastResult = document.querySelector('.lastResult');
+      const lowOrHi = document.querySelector('lowOrHi');
+      const guessSubmit = document.querySelector('.guessSubmit');
+      const guessField = document.querySelector('.guessField');
+
+      let guessCount = 1;
+      let resetButton;
+
+      function checkGuess() {
+        const userGuess = Number(guessField.value);
+        if(guessCount === 1) {
+          guesses.textContent = 'Previous guesses: ';
+        }
+        guesses.textContent += userGuess + ' ';
+
+        if(userGuess === randomNumber) {
+          lastResult.textContent = 'Congratulations! You got it right!';
+          lastResult.style.backgroundColor = 'green';
+          lowOrHi.textContent = '';
+          setGameOver();
+        } else if(guessCount === 10) {
+          lastResult.textContent = '!!!GAME OVER!!!';
+          setGameOver();
+        } else {
+          lastResult.textContent = 'Wrong!';
+          lastResult.style.backgroundColor = 'red';
+          if(userGuess < randomNumber) {
+            lowOrHi.textContent = 'Last guess was too low!';
+          } else if(userGuess > randomNumber) {
+            lowOrHi.textContent = 'Last guess was too high!';
+          }
+        }
+
+        guessCount++;
+        guessField.value = '';
+        guessField.focus();
       }
-    }
-
-    guessCount++;
-    guessField.value = '';
-    guessField.focus();
-  }
-  guessSubmit.addeventListener('click', checkGuess);
-
-  function setGameOver() {
-	  guessField.disabled = true;
-	  guessSubmit.disabled = true;
-	  resetButton = document.createElement('button');
-	  resetButton.textContent = 'Start new game';
-	  document.body.appendChild(resetButton);
-	  resetButton.addeventListener('click', resetGame);
-  }
-
-  function resetGame() {
-	  guessCount = 1;
-
-    const resetParas = document.querySelectorAll('.resultParas p');
-    for (const resetPara of resetParas) {
-      resetPara.textContent = '';
-    }
-	  resetButton.parentNode.removeChild(resetButton);
-
-	  guessField.disabled = false;
-	  guessSubmit.disabled = false;
-	  guessField.value = '';
-	  guessField.focus();
-
-	  lastResult.style.backgroundColor = 'white';
-
-	  randomNumber = Math.floor(Math.random()) + 1;
-  }
-</script>
+      guessSubmit.addeventListener('click', checkGuess);
+
+      function setGameOver() {
+        guessField.disabled = true;
+        guessSubmit.disabled = true;
+        resetButton = document.createElement('button');
+        resetButton.textContent = 'Start new game';
+        document.body.appendChild(resetButton);
+        resetButton.addeventListener('click', resetGame);
+      }
+
+      function resetGame() {
+        guessCount = 1;
+
+        const resetParas = document.querySelectorAll('.resultParas p');
+        for (const resetPara of resetParas) {
+          resetPara.textContent = '';
+        }
+        resetButton.parentNode.removeChild(resetButton);
+
+        guessField.disabled = false;
+        guessSubmit.disabled = false;
+        guessField.value = '';
+        guessField.focus();
+
+        lastResult.style.backgroundColor = 'white';
+
+        randomNumber = Math.floor(Math.random()) + 1;
+      }
+    </script>
+  </body>
 </html>
