Example

0d
0h
0m
0

                                                                            <div class="countdown py-2 h4 d-flex justify-content-center align-content-center"
                                                                                data-countdown="2024-01-01 00:05:45">
                                                                                <div class="countdown__section days me-2">
                                                                                    <span class="value">0</span>
                                                                                    <span class="label text-muted fs-6">d
                                                                                    </span>
                                                                                </div>
                                                                                <div class="countdown__section hours me-2">
                                                                                    <span class="value">0</span>
                                                                                    <span class="label text-muted fs-6">h
                                                                                    </span>
                                                                                </div>
                                                                                <div class="countdown__section minutes me-2">
                                                                                    <span class="value">0</span><span
                                                                                        class="label text-muted fs-6">m
                                                                                        </span>
                                                                                </div>
                                                                                <div class="countdown__section seconds me-2">
                                                                                    <span class="value">0</span>
                                                                                </div>
                                                                            </div>
                                                                            
                                                                        

Simple example

<span class="countdown badge bg-dark d-inline-flex" data-countdown="2024-01-01 00:05:45"></span>