.ui-dialog.please-wait .ui-dialog-titlebar { display: none ; }

#please-wait { display: flex ; justify-content: center ; padding: 10px !important ; }
#please-wait img { align-self: flex-start ; flex-shrink: 0 ; margin-right: 1em ; }
#please-wait .message { flex-grow: 1 ; display: flex ; flex-direction: column ; justify-content: center ; min-height: 32px ; }