From 0f914db92b7369dadd5f4aa0d4ba502c646dba34 Mon Sep 17 00:00:00 2001
From: chenjiahan <chenjiahan@youzan.com>
Date: Sat, 4 Apr 2020 23:38:08 +0800
Subject: [PATCH] docs: mourn

---
 docs/src/index.js   |  1 +
 docs/src/mourn.js   | 12 ++++++++++++
 docs/src/preview.js |  1 +
 3 files changed, 14 insertions(+)
 create mode 100644 docs/src/mourn.js

diff --git a/docs/src/index.js b/docs/src/index.js
index 183eb60c..176fd0a3 100644
--- a/docs/src/index.js
+++ b/docs/src/index.js
@@ -1,3 +1,4 @@
+import './mourn';
 import Vue from 'vue';
 import VueRouter from 'vue-router';
 import App from './App';
diff --git a/docs/src/mourn.js b/docs/src/mourn.js
new file mode 100644
index 00000000..38bb426e
--- /dev/null
+++ b/docs/src/mourn.js
@@ -0,0 +1,12 @@
+const now = new Date();
+
+if (now.getFullYear() === 2020 && now.getMonth() === 3 && now.getDate() === 4) {
+  const filter = `
+    html{
+      filter: grayscale(100%);
+      -webkit-filter: grayscale(100%);
+      -moz-filter: grayscale(100%);
+    }
+  `;
+  document.head.insertAdjacentHTML('beforeend', `<style>${filter}</style>`);
+}
diff --git a/docs/src/preview.js b/docs/src/preview.js
index 0da6fab6..195d10b2 100644
--- a/docs/src/preview.js
+++ b/docs/src/preview.js
@@ -1,3 +1,4 @@
+import './mourn';
 import Vue from 'vue';
 import Preview from './Preview.vue';