Wikitude

HTMLDrawable doesn't look the same in different devices.

I have a very simple HTML drawable, the code looks like this: 

I have the drawable at http://masporfavor.com/ar22.html

When I look at it through a Motorola Atrix, I can see a large text saying "Viva la revo.."  (cannot take screenshot).

When I look at it through an iPhone5, the full text is there, but very very small (to the left of the character in the screenshot).

Why does this happen?