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<!DOCTYPE html> <html> <head> <style> .flex-container { display: flex; height: 200px; align-items: baseline; background-color: DodgerBlue; } .flex-container > div { background-color: #f1f1f1; width: 100px; margin: 10px; text-align: center; line-height: 75px; font-size: 30px; } </style> </head> <body> <h1>align-items 属性</h1> <p>bb 对齐弹性项目，例如它们的基线对齐：</p> <div class="flex-container"> <div><h1>1</h1></div> <div><h6>2</h6></div> <div><h3>3</h3></div> <div><small>4</small></div> </div> </body> </html>