Image styles for new, borderless screenshots from ember

I was able to get the new screenshots to use decent with:

width: 100%;
border: 1px solid grey;
border-radius: 5px;
box-shadow: 0px 0px 2em -1em;
margin-top: 2em;
margin-bottom: 2em;

(As discussed, the border should be lighter – ~ the border in the old screenshot should be good. Above meant only as a guide.)

New

Old