A simple yet versatile animated spinner component. Add .loader-[sm|lg]or .is-loading-[sm|lg]to create loaders at different sizes.
                                            
                                                Using Bootstrap’s typical naming structure i.e. .loader-primary,you can create colored loaders depending on your needs.
                                            
                                        Indicate loading state of nearly any component with an .is-loadingmodifier.
                                    
<!-- Buttons -->
                                            <a href="#" class="btn btn-lg btn-primary is-loading">Button</a>
                                            <a href="#" class="btn btn-outline-primary is-loading is-loading-sm">Button</a>
                                            
                                            <!-- Loading card -->
                                            <div class="card">
                                              <div class="card-header">
                                                <h4 class="card-title">Loading card</h4>
                                              </div>
                                              <div class="card-body is-loading is-loading-lg">
                                                Loading content
                                              </div>
                                            </div>