message: absolutely position close button
diff: @@ -86,7 +86,7 @@ function Modal({children, dismiss, open, ...props}) {
  <>
  <Overlay />
  <StyledDialog ref={modalRef} role="dialog" {...props} {...getModalProps()}>
  - <ButtonClose onClick={() => dismiss()} />
  + <ButtonClose onClick={() => dismiss()} sx={{position: 'absolute', top: '16px', right: '16px'}} />
  {children}
  </StyledDialog>
  </>
  