mrna css update

src/fe/mrna/css/all.css

   padding: 0.8em;
 }
 .moreref .container {
-  padding-bottom: 6em;
+  padding-bottom: 4em;
 }
 .moreref__list {
   display: flex;

src/fe/mrna/css/section/_moreref.scss

         padding: 0.8em;
     }
     .container {
-        padding-bottom: 6em;
+        padding-bottom: 4em;
     }
     &__list {
         display: flex;