center definition if focused

src/components/Article.vue

@@ -131,7 +131,12 @@ export default {
   },
   mounted: function() {
     if (this.$route.hash == "#"+ this.title_id) {
-      document.getElementById(this.title_id).focus()
+      let focused = document.getElementById(this.title_id)
+      if (focused) focused.focus()
+    }
+    else if (this.$route.hash) {
+      let focused =document.getElementById(this.$route.hash.replace("#",""))
+      if (focused) focused.scrollIntoView({block: "center"})
     }
   },
   methods: {