improve spinner positioning

src/components/Spinner.vue

@@ -19,10 +19,6 @@ $offset = 126
 $duration = 1.4s
 
 .spinner
-  position fixed
-  z-index 999
-  right 15px
-  bottom 15px
   transition opacity .15s ease
   animation rotator $duration linear infinite
   animation-play-state paused

src/views/ItemView.vue

@@ -114,10 +114,8 @@ function fetchComments (store, item) {
   padding 1em 0
   position relative
   .spinner
-    position absolute
-    top 0
-    right 0
-    bottom auto
+    display inline-block
+    margin -15px 0
 
 .comment-children
   list-style-type none