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<!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://cdn.jsdelivr.net/npm/bootstrap@4.6.2/dist/css/bootstrap.min.css">
  <script src="https://cdn.jsdelivr.net/npm/jquery@3.7.1/dist/jquery.slim.min.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.1/dist/umd/popper.min.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.6.2/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="container mt-3">
  <h2>Custom Select Menu Sizing</h2>
  <p>Use the .custom-select-sm class to create a small select menu and the .custom-select-lg class for a large one:</p>
  <form>
    <select class="custom-select custom-select-sm mb-3">
      <option selected>Small Custom Select Menu</option>
      <option value="volvo">Volvo</option>
      <option value="fiat">Fiat</option>
      <option value="audi">Audi</option>
    </select>
    <select name="cars" class="custom-select mb-3">
      <option selected>Default Custom Select Menu</option>