Modal:

            
                <div class="modal-container">
                    <div class="modal-text">
                        <h3>Leave site?</h3>
                        <p>Changes you made may not be saved.</p>
                    </div>
                    <div class="modal-cta">
                        <a href="#"><button class="button-contained">Leave</button></a>
                        <a href="#"><button class="button-outlined">Cancel</button></a>
                    </div>
                </div>