I'm currently trying to have a css radius on my slideshow around the tops. It is working partially but not properly.

Before a transition it appears as a box but then a transition occurs and during its transition it shows the rounded edges. Once the transition is complete it reverts back to a box.

Can anyone possibly give some advice? I've used !important in my css

Here is the site I'm working on


You can see what I am talking about on there

Any help would be greatly appreciated on this

Thank you in advance