trying to merge buttons and nav bar

index.html

@@ -25,6 +25,11 @@
             <ol id="level-lists">
             </ol>
         </nav>
+        <div id="timer">Time</div>
+        <button id="Pause" onclick="Pause()">Pause</button>
+        <br>
+        <div></div>
+        <canvas id="canvas" width="800" height="400"></canvas>
         <div class="to-center">
             <canvas id="canvas" width="800" height="400"></canvas>
             <div class="text-bubble">

script.js

@@ -57,7 +57,7 @@ function timer(){
   txt.innerHTML= afficher;
   
   time = time <= 0 ? 0 : time -1;
-  if (time == )
+  if (time == 0)
   {
   clearInterval(maVar);
   }