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<!DOCTYPE html> <html> <head> <style> .flex-container { display: flex; align-items: stretch; background-color: #f1f1f1; } .flex-container > div { background-color: DodgerBlue; color: white; margin: 10px; text-align: center; line-height: 75px; font-size: 30px; } </style> </head> <body> <h1>flex-grow 属性</h1> <p>使第三个弹性项目的增长速度比其他弹性项目快八倍：</p> <div class="flex-container"> <div style="flex-grow: 1">1</div> <div style="flex-grow: 1">2</div> <div style="flex-grow: 8">3</div> </div> </body> </html>