I'm using a masking element to clip an image and then scaling that image on hover.
I can't figure out why the border-radius seems to stop existing on the masking element during transition.
http://codepen.io/corysimmons/pen/rOvdXX?editors=110
<div class="mask">
<img src="http://placekitten.com/505/505">
</div>
.mask
overflow: hidden
width: 300px
height: 300px
border-radius: 999em
img
transition: all 500ms ease
&:hover
img
transform: scale(1.2)