Home
JS
JS
Tryit: JAVASCRIPT
运行 ❯
×
Change Orientation
Change Theme, Dark/Light
<!DOCTYPE html> <html> <body> <p> <a href="/html/default.asp">HTML</a><br> <a href="/css/default.asp">CSS</a> </p> <p>单击该按钮可为文档中的第一个链接添加红色边框。</p> <button onclick="myFunction()">试一试</button> <p id="demo"></p> <script> function myFunction() { document.links[0].style.border = "5px solid red"; } </script> </body> </html>