Tweaked animation time.

styles/animation.less

@@ -37,9 +37,9 @@
 
 @-webkit-keyframes fadein {
   from {
-    opacity:0;
+    opacity: 0;
   }
   to {
-    opacity:1;
+    opacity: 1;
   }
 }

styles/mixins.less

@@ -33,5 +33,5 @@
   opacity: 0;
   -webkit-animation: fadein ease-in 1;
   -webkit-animation-fill-mode: forwards;
-  -webkit-animation-duration: 0.3s;
+  -webkit-animation-duration: 0.2s;
 }

styles/right-panel.less

@@ -1,6 +1,5 @@
 .details {
   .fade-in();
-  -webkit-animation-delay: 0.3s;
   background-color: @color-background;
   margin: 0;
   padding: 0;