fix: fix target clear logic

assets/styles/post.styl

@@ -322,7 +322,7 @@ margin-y($top, $bottom = $top)
   [data-target]
     outline 2px solid transparent
     outline-offset -1px
-    animation target-blink 3s ease 1 both
+    animation target-blink 5s ease 1 both
 
   .hljs-attr
     color #c5e478
@@ -331,10 +331,11 @@ margin-y($top, $bottom = $top)
   0%
     outline-color #8fbcff
 
-  5%
-  15%
+  3%
+  9%
     outline-color #0052cc
 
-  10%
+  6%
+  12%
   80%
     outline-color #8fbcff

plugins/target.js

@@ -1,15 +1,19 @@
-export default ({ app }) => {
-  let target
+let target
 
-  document.documentElement.addEventListener('click', () => {
+function clearTarget () {
   if (!target) {
     return
   }
 
   delete target.dataset.target
-  })
+}
+
+export default ({ app }) => {
+  document.documentElement.addEventListener('click', clearTarget)
 
   app.router.afterEach(to => {
+    clearTarget()
+
     if (!to.hash) {
       return
     }