点击运行
<!DOCTYPE html> <html> <head> <style> .flex-container { display: flex; background-color: #f1f1f1; } .flex-container > div { background-color: DodgerBlue; color: white; width: 100px; margin: 10px; text-align: center; line-height: 75px; font-size: 30px; } </style> </head> <body> <h1>弹性项目</h1> <div class="flex-container"> <div>1</div> <div>2</div> <div>3</div> <div>4</div> </div> <p>弹性容器的所有直接子元素会（自动）成为弹性项目。</p> </body> </html>
运行结果
