源代码 ：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> </head> <body> <p id="p1">Hello world!</p> <p id="p2">Hello world!</p> <script> document.getElementById("p2").style.color="blue"; document.getElementById("p2").style.fontFamily="Arial"; document.getElementById("p2").style.fontSize="larger"; </script> </body> </html>
运行结果