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法律學在 Bootstrap 4 中將彈性專案在不同螢幕中居中對齊
要在 Bootstrap 4 中將彈性專案在不同螢幕中居中對齊，請使用 .align-self-*-center 樣式。
設定在不同螢幕中，如小螢幕、中螢幕、大螢幕等中 −
在小螢幕中將彈性專案居中對齊
<div class="d-flex bg-primary" style="height:200px"> <div class="p-2 border">A-one</div> <div class="p-2 border">B-one</div> <div class="p-2 border align-self-sm-center">C-one</div> <div class="p-2 border">D-one</div> </div>
在中螢幕中將彈性專案居中對齊
<div class="d-flex bg-primary" style="height:200px"> <div class="p-2 border">A-one</div> <div class="p-2 border">B-one</div> <div class="p-2 border align-self-md-center">C-one</div> <div class="p-2 border">D-one</div> </div>
在大螢幕中將彈性專案居中對齊
<div class="d-flex bg-primary" style="height:200px"> <div class="p-2 border">A-one</div> <div class="p-2 border">B-one</div> <div class="p-2 border align-self-lg-center">C-one</div> <div class="p-2 border">D-one</div> </div>
讓我們看一個示例，將彈性專案在不同螢幕中居中對齊 −
示例
<!DOCTYPE html> <html lang="en"> <head> <title>Bootstrap Example</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> </head> <body> <div class="container mt-3"> <h1>Align Specific Flex Item in the center</h1> <div class="d-flex bg-primary" style="height:200px"> <div class="p-2 border">A-one</div> <div class="p-2 border">B-one</div> <div class="p-2 border align-self-center">C-one</div> <div class="p-2 border">D-one</div> </div> <h2>Small Screen Size</h2> <div class="d-flex bg-primary" style="height:200px"> <div class="p-2 border">A-one</div> <div class="p-2 border">B-one</div> <div class="p-2 border align-self-sm-center">C-one</div> <div class="p-2 border">D-one</div> </div> <h2>Medium Screen Size</h2> <div class="d-flex bg-secondary" style="height:200px"> <div class="p-2 border">A-one</div> <div class="p-2 border">B-one</div> <div class="p-2 border align-self-md-center">C-one</div> <div class="p-2 border">D-one</div> </div> <h2>Large Screen Size</h2> <div class="d-flex bg-info" style="height:200px"> <div class="p-2 border">A-one</div> <div class="p-2 border">B-one</div> <div class="p-2 border align-self-lg-center">C-one</div> <div class="p-2 border">D-one</div> </div> </div> </body> </html>
更新時間：18-Jun-2020
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