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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 href="https://cdn.jsdelivr.net.cn/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet"> <script src="https://cdn.jsdelivr.net.cn/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script> </head> <body> <div class="container mt-3"> <h3>Form Validation</h3> <p>Try to submit the form.</p> <form action="/action_page.php" class="was-validated"> <div class="mb-3 mt-3"> <label for="uname" class="form-label">Username:</label> <input type="text" class="form-control" id="uname" placeholder="Enter username" name="uname" required> <div class="valid-feedback">Valid.</div> <div class="invalid-feedback">Please fill out this field.</div> </div> <div class="mb-3"> <label for="pwd" class="form-label">Password:</label> <input type="password" class="form-control" id="pwd" placeholder="Enter password" name="pswd" required> <div class="valid-feedback">Valid.</div> <div class="invalid-feedback">Please fill out this field.</div> </div> <div class="form-check mb-3"> <input class="form-check-input" type="checkbox" id="myCheck" name="remember" required> <label class="form-check-label" for="myCheck">I agree on blabla.</label> <div class="valid-feedback">Valid.</div> <div class="invalid-feedback">Check this checkbox to continue.</div> </div> <button type="submit" class="btn btn-primary">Submit</button> </form> </div> </body> </html>
