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display: flex 和 justify-content: center 强大居中

news 2025/7/12 11:42:12

你还在为居中而烦恼吗，水平居中多个元素、创建响应式布局、垂直和水平同时居中内容。它，display: flex 和 justify-content: center 都可以完成！

display: flex：将元素定义为flex容器
justify-content：定义项目在主轴上的对齐方式

例1：导航菜单居中

<!DOCTYPE html>
<html lang="zh">
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title><style>nav ul {display: flex;justify-content: center;list-style-type: none;padding: 0;}nav li {font-size: 16px;margin: 0 10px;}</style>
</head>
<body><nav><ul><li><a href="#">首页</a></li><li><a href="#">关于</a></li><li><a href="#">联系</a></li></ul></nav>
</body>
</html>

例2：图片和文字并排居中

<!DOCTYPE html>
<html lang="zh">
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title><style>.container {display: flex;justify-content: center;align-items: center;}.container img {margin-right: 10px;width: 30px;height: 30px;}</style>
</head>
<body><div class="container"><img src="../../Web/static/img/LA.png" alt="Logo"><h1>公司名称</h1></div>
</body>
</html>

例3：多个块级元素居中

<!DOCTYPE html>
<html lang="zh">
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title><style>.features {display: flex;justify-content: center;flex-wrap: wrap;}.feature {margin: 10px;padding: 20px;background-color: #f0f0f0;}</style>
</head>
<body><div class="features"><div class="feature">功能1</div><div class="feature">功能2</div><div class="feature">功能3</div></div>
</body>
</html>