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Legal StudiesBootstrap 4 .rounded-left 類
在 Bootstrap 4 中使用 rounded-left 類，讓元素擁有圓角。
將該類應用於類似 <div> 的任意元素。
<div class="one rounded-left"> </div>
我們還包含了一個用於設定樣式的類 <div>。
.one {
width: 200px;
height: 100px;
background-color: maroon;
margin: 8px;
}我們來看一個如何實現 rounded-left 類的示例。
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>
<style>
.one {
width: 200px;
height: 100px;
background-color: maroon;
margin: 8px;
}
</style>
</head>
<body>
<div class="container">
<h2>Rounded Corner</h2>
<p>We have two rectangles with left rounded corner:</p>
<div class="one rounded-left"></div>
<div class="one rounded-left"></div>
</div>
</body>
</html>
更新日期：2020-06-17
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