feat: 新增標籤外掛 timeline closed #644

fix: 自建頁面圖片沒有 blur 效果
improvement: 優化 404 頁面 UI
improvement: lazyload 默認佔位圖改為透明圖片
improvement: 優化 lazyload blur 出現特效
improvement: 優化 css

source/css/_global/function.styl

@@ -27,6 +27,29 @@
   &:hover
     box-shadow: var(--card-hover-box-shadow)
 
+.imgHover
+  width: 100%
+  height: 100%
+  transition: filter 375ms ease-in .2s, transform .6s
+  object-fit: cover
+
+  &:hover
+    transform: scale(1.1)
+
+.postImgHover
+  &:hover
+    img
+      opacity: .8
+      transform: scale(1.1)
+
+  img
+    position: absolute
+    width: 100%
+    height: 100%
+    opacity: .4
+    transition: all .6s, filter 375ms ease-in .2s
+    object-fit: cover
+
 maxWidth600()
   @media screen and (max-width: 600px)
     {block}