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<!DOCTYPE html> <html> <head> <style> .grid-container { display: grid; height: 400px; align-content: center; grid-template-columns: auto auto auto; grid-gap: 10px; background-color: #2196F3; padding: 10px; } .grid-container > div { background-color: rgba(255, 255, 255, 0.8); text-align: center; padding: 20px 0; font-size: 30px; } </style> </head> <body> <h1>align-content 属性</h1> <p>请使用 <em>align-content</em> 属性垂直对齐容器内的网格。</p> <p>值 "center" 会对齐容器中间的行：</p> <div class="grid-container"> <div>1</div> <div>2</div> <div>3</div> <div>4</div> <div>5</div> <div>6</div> </div> </body> </html>