[thelist] creating a stretchable canvas with a max & min width

[Alex Beston]

 Hi All

Trying to work out how you create box that is only allowed to expand up 
to a maximum width say 900 pixels and is allowed to strink down to a 
minimum say 600px.

How would you go about doing this?

Thanks in advance

rgds

a.

(apologies to those who get this twice)