图片跟着鼠标移动 · JavaScript

## 效果 ``` <style> img { position: absolute; } body{ height: 2000px; } </style> </head> <body> <img src="1-small.jpg" alt="" id="img"> <script> var img = document.getElementById('img'); document.onmousemove = function (e) { e = e || window.event; img.style.left = e.pageX - 50 + 'px'; img.style.top = e.pageY - 50 + 'px'; } </script> ```