[browsermedia#664] FIX: Image blocks were oversized

* Fixed issue where image blocks viewed with the CMS were too big for their space. Works with both 'too large' and 'too small' images.

Author: peakpg

app/assets/stylesheets/cms/styles/_images.css.scss

@@ -4,6 +4,13 @@ img {
 height: auto;
 display: inline-block;
 }
+
+// Image blocks viewed within the CMS shouldn't be 100% width.
+img[data-type="image_block"] {
+ width: auto;
+ max-width: 100%;
+}
+
 .img-rounded {
 @include border-radius(6px);
 }