Bootstrap 4 .flex-grow-0 | 1类

在Bootstrap中使用.flex-grow-0 | 1类，以允许单个lex项占用flex中的其余空间。

例如，以下内容占据了右侧的其余空间-

通过为最后一个flex-item添加flex-grow类来设置以上内容-

<div class="d-flex mb-3">
  <div class="p-2 bg-danger">P</div>
  <div class="p-2 bg-info">Q</div>
  <div class="p-2 flex-grow-1 bg-secondary">R</div>
</div>

让我们看下面的示例来实现flex-grow-0 | 1类-

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://cdn.staticfile.org/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">
    <div class="d-flex mb-3">
      <div class="p-2 bg-danger">P</div>
      <div class="p-2 bg-info">Q</div>
      <div class="p-2 flex-grow-1 bg-secondary">R</div>
    </div>
    <div class="d-flex mb-3">
      <div class="p-2 bg-success">P</div>
      <div class="p-2 flex-grow-1 bg-primary">Q</div>
      <div class="p-2 bg-info">R</div>
    </div>
  </div>

</body>
</html>

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