Update header.css

Author: smakosh

src/styles/header.css

@@ -77,6 +77,7 @@
     }
     .header .buttons a:first-child {
         margin-left: unset;
+        margin-bottom: 2rem;
     }
     .header .buttons a:last-child {
         margin-left: unset;
@@ -112,4 +113,4 @@
 }
 .flexed-links a {
     color: #12c3d2;
-}
+}