运行 ❯
获取您
的
网站
×
更改方向
保存代码
更改主题，深色/浅色
前往空间
<!DOCTYPE html> <html> <body> <h3>A demonstration of how to access a HEADER element</h3> <article> <header id="myHeader"> <h3>Edge Web Browsers</h3> </header> <p>Edge was first released for Windows 10 and Xbox One in 2015.</p> </article> <p>Click the button to set the color of the header element to red.</p> <button onclick="myFunction()">Try it</button> <script> function myFunction() { const x = document.getElementById("myHeader"); x.style.color = "red"; } </script> </body> </html>
