Why does my page look different on my phone to my iPad ?

Answer 1

Yes it will that's why it is recommended to use relative sizing in % which is relative to its parent element. actually if u use 12px then it will always show 12px it will not depend upon the pixels of your screen .

Answer 2

what would the codes be for that, i take this is wrong what i put in.
<frameset cols="100, 25%, *"></frameset>
<frameset rows="100, 25%, *"></frameset>