Added assets scss file

assets/styles/_ee-design-system.scss

@@ -48,6 +48,7 @@
 @import "ee-design-system/icons";
 @import "ee-design-system/modals";
 @import "ee-design-system/cards";
+@import "ee-design-system/exhibit";
 @import "ee-design-system/utilities";
 @import "ee-design-system/forms";
 @import "ee-design-system/custom";

assets/styles/ee-design-system/_exhibit.scss

+.exhibit__content {
+  &--dark {
+    @extend .antialiased;
+    background: $blue;
+    color: #fff;
+  }
+}
+
+.exhibit__caption {
+  background: rgba($base-color, 0.04);
+  box-shadow: inset 0 1px 0 $base-alpha-color;
+
+  pre {
+    padding: 0;
+    border-radius: 0;
+    box-shadow: none;
+    background: none;
+  }
+
+  figure {margin-left:0;}
+
+  .highlight pre,
+  > *:last-child {
+    margin-bottom: 0;
+  }
+}
+
+.exhibit__captitle {
+  @extend .heading-alt;
+  font-size: 0.875rem;
+  line-height: 1.25rem;
+}
+
+.exhibit__details {
+  dd {
+    margin-bottom: 0;
+  }
+}
+
+.exhibit__content > .button {
+    margin: 0 .5rem .5rem 0
+}
\ No newline at end of file