I am working at the website www2013.veggiepride.org and I would need to replace part of the header with an image.
I have already erased the picture "call us".
I want to leave the text "Paris, 10-11 mai 2014 Veggie Pride" and just insert a picture to cover the rest of the header where it says "ici il y aura la bannière" till the end of the header.
How can I do it?
1) I have to communicate to a graphist the dimensions of the whole header or of the part I to replace, but I do not know which are the dimensions (it looks like they are not fixed but change according to the dimensions of the page). Could you please tell me the dimensions I shoudl ask for (of the full header and/or that part I want to replace).
2) The header is a php page and does not have an image format. How can I insert a .jpg to replace it or part of it using the editor?