improve pagination item transition effect

style/components/pagination.less

@@ -26,7 +26,6 @@
     border: 1px solid #d9d9d9;
     background-color: #fff;
     margin-right: 8px;
-    transition: all 0.3s ease;
 
     a {
       text-decoration: none;
@@ -34,6 +33,7 @@
     }
 
     &:hover {
+      transition: all 0.3s ease;
       border-color: @primary-color;
       a {
         color: @primary-color;
@@ -99,6 +99,7 @@
     line-height: 28px;
     float: left;
     text-align: center;
+    transition: all 0.3s ease;
   }
 
   &-prev, &-next {