W3School TIY Editor
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<!DOCTYPE html> <html> <body> <h2 id="myH2">这是示例 h2</h2> <p id="myP">这是示例段落。</p> <p id="myP2">这也是示例段落。</p> <div id="myDiv">这是示例 div。</div> <br> <button type="button" onclick="myFunction()">设置文本颜色</button> <script> function myFunction() { document.getElementById("myH2").style.color = "#ff0000"; document.getElementById("myP").style.color = "magenta"; document.getElementById("myP2").style.color = "blue"; document.getElementById("myDiv").style.color = "lightblue"; } </script> </body> </html>