MAPG-69 ability to reset signup filled after login attempt

public/static/css/mapguesser.css

@@ -354,6 +354,12 @@ div.box {
         padding: 0;
         width: 100%;
     }
+    button.marginLeft, a.button.marginLeft {
+        margin-left: 0;
+    }
+    button.marginRight, a.button.marginRight {
+        margin-right: 0;
+    }
     div.modal {
         left: 20px;
         right: 20px;