Bootstrap 4 .flex-*-fill class implementation

Bootstrap Web Development CSS Framework

Use the flex-*-fill class to set the flex items to have equal width on different screens as shown in the below code snippet −

For Small Width Screen

<div class="d-flex mb-3 bg-primary">
  <div class="p-2 flex-sm-fill bg-info">A</div>
  <div class="p-2 flex-sm-fill bg-warning">B</div>
  <div class="p-2 flex-sm-fill bg-primary">C</div>
</div>

For Medium Width Screen

<div class="d-flex mb-3 bg-primary">
  <div class="p-2 flex-md-fill bg-info">A</div>
  <div class="p-2 flex-md-fill bg-warning">B</div>
  <div class="p-2 flex-md-fill bg-primary">C</div>
</div>

The following is an example to implement the flex-*fill class −

Exmaple

Live Demo

<!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">
    <h3>Flex (Small Width)</h3>
    <div class="d-flex mb-3 bg-primary">
      <div class="p-2 flex-sm-fill bg-info">A</div>
      <div class="p-2 flex-sm-fill bg-warning">B</div>
      <div class="p-2 flex-sm-fill bg-primary">C</div>
    </div>
    <h3>Flex (Medium Width)</h3>
    <div class="d-flex mb-3 bg-primary">
      <div class="p-2 flex-md-fill bg-info">A</div>
      <div class="p-2 flex-md-fill bg-warning">B</div>
      <div class="p-2 flex-md-fill bg-primary">C</div>
    </div>
    <h3>Flex (Large Width)</h3>
    <div class="d-flex mb-3 bg-primary">
      <div class="p-2 flex-lg-fill bg-info">A</div>
      <div class="p-2 flex-lg-fill bg-warning">B</div>
      <div class="p-2 flex-lg-fill bg-primary">C</div>
    </div>
  </div>

</body>
</html>

Amit Diwan

Updated on: 18-Jun-2020

140 Views

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