Visual Composer iHover question

Hi all,
I have a question about my website.
The website is still under construction and I want to make a homepage with Visual Composer with addons. When I work with iHover, as you can see in the square images, there is a black dot in the upper left coer. It really don't like that dot so I want to delete it somehow.

Can someone help me out here? When I look at the demo page (http://stopdesign.cn/demo/ihover/) there are no black dots so I guess it has to be possible?

Thanks in advance!