on mobile or tablet my header doesn't centre align
I have tried to align my blog header image to the centre every way I can think of. Setting the div align=center, setting the style text-align:center; and even just <center> - all of these work on full-res laptop/computer screens but not on mobile or tablets where the image is invariably left or semi-left aligned.
I'm obviously not amazing with code so some gentle help would be awesome to suggest why it will not align centre on mobile devices.
Web address is: www.seaofghosts.com