Elements won't stack side by side using upfront

Can anyone explain why I am unable to stack elements side by side? I can drag a text element to the page but when I attempt to drag a photo element and place is next to the text (on the right side) it shifts down below and both the text and photo element boxes take up 100% width. Additionally, if I try to drag either element to make is less than 100%, I can only choose 25% or 50%, any other size besides those and the element auto adjusts back to 100% width and the elements won't stack side by side.