add css to draw tabs border (#1598)

* add css to draw tabs border

CSS by blake

Co-Authored-By: BotBlake <[email protected]>

* use updated design from erik

Co-Authored-By: Erik <[email protected]>

---------

Co-authored-by: BotBlake <[email protected]>
Co-authored-by: Erik <[email protected]>

Author: 3 people

src/css/custom.scss

@@ -132,3 +132,10 @@ a.pills__item:not(.pills__item--active) {
     display: none;
   }
 }
+
+.tabs-container {
+  border: 1px solid #fff4;
+  background-color: #fff1;
+  border-radius: 8px;
+  padding: 16px;
+}