Bootstrap 简明教程
Bootstrap - Vertical align
本章讨论了 Bootstrap 提供的垂直对齐实用工具。
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您可以更改 inline, inline-block, inline-table 和 table cell elements 的垂直对齐方式。
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根据您的需要,从以下类中进行选择: .align-baseline .align-top .align-middle .align-bottom .align-text-bottom .align-text-top
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为了对齐非内联内容,请使用 flex box utilities
让我们看一个对齐内联元素的示例:
Example
你可以编辑并尝试运行此代码,使用 编辑和运行 选项。
<!DOCTYPE html>
<html>
<head>
<title>Bootstrap - Vertical align</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="container mt-3">
<h4 class="display-5">Vertical align</h4>
<p>Change the alignment of elements with the align classes (only works on inline, inline-block, inline-table and table cell elements):</p><br><br>
<button class="btn align-baseline text-bg-success">align baseline</button>
<button class="btn align-top text-bg-success">align top</button>
<button class="btn align-middle text-bg-success">align middle</button>
<button class="btn align-bottom text-bg-success">align bottom</button>
<button class="btn align-text-top text-bg-success">align text top</button>
<button class="btn align-text-bottom text-bg-success">align text bottom </button>
</div>
</body>
</html>
让我们看一个对齐表格单元格元素的示例:
Example
你可以编辑并尝试运行此代码,使用 编辑和运行 选项。
<!DOCTYPE html>
<html>
<head>
<title>Bootstrap - Vertical align</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="container mt-3">
<h4 class="display-5">Vertical Align - Table cell elements</h4>
<p>Change the alignment of elements with the align classes (only works on inline, inline-block, inline-table and table cell elements):</p><br><br>
<table class="table-bordered bg-light" style="height: 100px;">
<tbody>
<tr>
<td class="p-2 align-baseline">align baseline</td>
<td class="p-2 align-top">align top</td>
<td class="p-2 align-middle">align middle</td>
<td class="p-2 align-bottom">align bottom</td>
<td class="p-2 align-text-top">align-text-top</td>
<td class="p-2 align-text-bottom">align-text-bottom</td>
</tr>
</tbody>
</table>
</div>
</body>
</html>