i want to create a Microsite in ExactTarget with a Special Customer Design but i do not find how to insert an external file in a Microsite?
In the new CloudPages its possible but in the older Version where i finde the Microsites under "Content > Microsites" i not find any solution.
Someone has an idea?
Thanks a lot!
You can also upload CSS as a Portolio item. After it's uploaded, double-click on it to get the URL.