Bootstrap Form

<div class="container">
<div class="card" style="padding:10px; background:white">

<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>
</div>