主页
CSS 参考手册
CSS z-index 属性
trycss_js_z-index
运行 ❯
×
更改方向
保存代码
更改主题
<!DOCTYPE html> <html> <head> <style> #myDIV { position: absolute; width: 300px; height: 150px; background-color: lightblue; border: 1px solid black; } #DIV2 { position: relative; top: 130px; left: 30px; width: 300px; height: 150px; background-color: coral; border: 1px solid black; } </style> </head> <body> <h1>Change z-index with JavaScript</h1> <p>Click the "Try it" button to change the z-index of the blue DIV element:</p> <button onclick="myFunction()">Try it</button> <div id="DIV2"> <h1>Voila!</h1> </div> <div id="myDIV"> </div> <script> function myFunction() { document.getElementById("myDIV").style.zIndex = "-1"; } </script> </body> </html>