diff --git a/html/assets/css/main.css b/html/assets/css/main.css
index 8e2dc52..9740b4b 100644
--- a/html/assets/css/main.css
+++ b/html/assets/css/main.css
@@ -24,9 +24,11 @@
 }
 
 .bottom-placeholder {
-  height: 60px;
-  font-size:13px;
+  height: 90px;
+  font-size:12px;
   color: #999;
   display: grid;
   place-items: center;
+  text-align: center;
+  line-height: 1.7em;
 }
diff --git a/html/bilibili_hotband.html b/html/bilibili_hotband.html
index e5ae67c..472bfe5 100644
--- a/html/bilibili_hotband.html
+++ b/html/bilibili_hotband.html
@@ -61,7 +61,10 @@
     <table id="list"></table>
     <p id="mobile-info"></p>
     <div class="bottom-placeholder">
-        <p>— 到底啦 —</p>
+        <p>
+            — 到底啦 —<br>
+            数据来源: https://www.bilibili.com/blackboard/activity-trending-topic.html
+        </p>
     </div>
 
     <script src="./assets/js/isMobile.js"></script>
diff --git a/html/bilibili_rank.html b/html/bilibili_rank.html
index f9acf90..0f916b8 100644
--- a/html/bilibili_rank.html
+++ b/html/bilibili_rank.html
@@ -86,7 +86,10 @@
     </nobr>
     <table id="list"></table>
     <div class="bottom-placeholder">
-        <p>— 到底啦 —</p>
+        <p>
+            — 到底啦 —<br>
+            数据来源: https://www.bilibili.com/v/popular/rank/all
+        </p>
     </div>
 
     <script>
diff --git a/html/weibo_hotband.html b/html/weibo_hotband.html
index 0542d6c..d6a46f7 100644
--- a/html/weibo_hotband.html
+++ b/html/weibo_hotband.html
@@ -65,7 +65,10 @@
     </nobr>
     <table id="list"></table>
     <div class="bottom-placeholder">
-        <p>— 到底啦 —</p>
+        <p>
+            — 到底啦 —<br>
+            数据来源: https://weibo.com/hot/search
+        </p>
     </div>
 
     <script>