.calendar-container{font-family:Arial,sans-serif;margin:20px auto;max-width:400px}.calendar-input{margin-bottom:10px;padding:8px;width:100%}.calendar-button{background-color:#0073e6;border:none;color:#fff;cursor:pointer;padding:10px;width:100%}.calendar-confirmation{color:green;display:none;margin-top:10px}