diff --git a/.obsidian/snippets/bg4e.css b/.obsidian/snippets/bg4e.css
index b88a853..d1a8f7f 100644
--- a/.obsidian/snippets/bg4e.css
+++ b/.obsidian/snippets/bg4e.css
@@ -109,14 +109,16 @@ table {
 
 /*   Ruby Interlinear  */
 ruby {
+  display:inline-flex;
+  flex-direction: column;
   font-family: 'Gentium Book Plus';
+  text-align: center;
   font-size: 16px ;
   line-height: 5em;
-  padding: 0px 2px;
 }
 
 ul ruby {
-  line-height:2em;
+  line-height:16px;
 }
 
 rt {
@@ -145,3 +147,9 @@ em,  .cm-em {
 li, p {
   font-family:  'Gentium Book Plus', 'Noto Sans', 'Noto Sans TC';
   }
+
+
+  @page {
+    size: A4 portrait;
+    margin: 1cm 0cm;
+    }
\ No newline at end of file
diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index 7ec8b11..c275630 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -3,24 +3,6 @@
     "id": "3969f3923e6cfedb",
     "type": "split",
     "children": [
-      {
-        "id": "9005c35444c4947e",
-        "type": "tabs",
-        "children": [
-          {
-            "id": "e9f926adb92f71d2",
-            "type": "leaf",
-            "state": {
-              "type": "markdown",
-              "state": {
-                "file": "BBG4E/HW4-Key.md",
-                "mode": "source",
-                "source": true
-              }
-            }
-          }
-        ]
-      },
       {
         "id": "ce8e6b160ded94bc",
         "type": "tabs",
@@ -173,7 +155,7 @@
       "workspaces:Manage workspace layouts": false
     }
   },
-  "active": "e9f926adb92f71d2",
+  "active": "684fd40358fa2fb2",
   "lastOpenFiles": [
     "BBG4E/HW4.md",
     "BBG4E/HW4-Key.md",