[add] tmp css

css/index.less

@@ -19,7 +19,7 @@ body.home {
         height: @grid-size;
         width: @grid-size;
         overflow: hidden;
-        margin: 0.25em;
+        margin: 18px;
         background-size: 112%;
         background-repeat: no-repeat;
         background-position: center;