onMouseWheel <SCRIPT> <br>var count = 10; <br>function Picture() <br>{ <br>count = Counting(count); <br>Resize(count); <br>return false; <br>} <br>function Counting(count){ <br>if (event.wheelDelta >= 120) <br>count ; <br>else if (event.wheelDelta <= -120) <BR>count--; <BR>return count; <BR>} <BR>function Resize(count){ <BR>oImage.style.zoom = count '0%'; <BR>oCounter.innerText = count '0%'; <BR>} <BR></SCRIPT>
Size =
100% 
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
