fmpq.com
源代码：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Fmpq教程(fmpq.com)</title> <style> div#main{ width:220px; height:300px; border:1px solid black; display:flex; align-items:center; } div#main div{ flex: 1; } </style> </head> <body> <div id="main"> <div style="background-color:coral;">RED</div> <div style="background-color:lightblue;">BLUE</div> <div style="background-color:lightgreen;">Green div with more content.</div> </div> <p>点击“尝试一下”按钮设置 alignItems 属性的值为 "flex-start"。</p> <button onclick="myFunction()">尝试一下</button> <script> function myFunction(){ document.getElementById("main").style.alignItems = "flex-start"; } </script> <p><b>注意：</b>Safari 不支持 alignItems 属性。</p> </body> </html>
运行结果