Improve padding of elements.

biscuit/core/static/css/style.css

@@ -8,19 +8,10 @@ body {
   flex-direction: column;
 }
 
-main {
-  padding: 60px 15px 0;
-}
-
 footer {
   width: 100%;
   margin-top: auto;
-}
-
-footer > .container {
-  padding-right: 15px;
-  padding-left: 15px;
-  width: 100%;
+  padding: 2em 0;
 }
 
 img.person-img {