Problem with my advertising code (banners) in the Footer

Hey guys
I have a problem with the .JS code of the advertising banners. You see, in my theme I have only one box to add up to 4 different JS 300 x 250 advertising codes. But when I add the 4 codes they appear VERTICALLY, that is, one over the other. A long time ago a friend added with a little code, it seems to me it was something like <—-> between each .JS and with that the point was fixed that I changed the web and there I lost that code.
Attached image to clarify the matter.
What can I…

Problem with my advertising code (banners) in the Footer

Problem with my advertising code (banners) in the Footer

Hey guys
I have a problem with the .JS code of the advertising banners. You see, in my theme I have only one box to add up to 4 different JS 300 x 250 advertising codes. But when I add the 4 codes they appear VERTICALLY, that is, one over the other. A long time ago a friend added with a little code, it seems to me it was something like <—-> between each .JS and with that the point was fixed that I changed the web and there I lost that code.
Attached image to clarify the matter.
What can I…

Problem with my advertising code (banners) in the Footer