diff --git a/api/config/css/cssConfig.json b/api/config/css/cssConfig.json
index ccd2d2b6cc87d4eb98c720e7c191866cfa8659d9..adc27a9d74e793e07a2e54ea2e26ad9060764f4b 100644
--- a/api/config/css/cssConfig.json
+++ b/api/config/css/cssConfig.json
@@ -7016,17 +7016,22 @@
     },
     {
       "name": "line-height",
-      "syntax": [
-        {
-          "name": "<length>"
-        }
-      ],
       "supportedDevices": [
         "tv",
         "phone",
         "tablet",
         "wearable"
       ],
+      "syntax": [
+        {
+          "name": "[ normal | <length> | <percentage> ]"
+        }
+      ],
+      "values": [        
+        {
+          "name": "normal"
+        }        
+      ],
       "version": [
         {
           "name": "v3.0"
@@ -7040,7 +7045,9 @@
       "restrictions": [
         {
           "name": [
-            "length"
+            "enum",
+            "length",
+            "percentage"
           ]
         }
       ]
@@ -8581,6 +8588,38 @@
           ]
         }
       ]
+    },
+    {
+      "name": "word-spacing",
+      "syntax": [
+        {
+          "name": "[normal | <length> | <percentage>]"
+        }
+      ],
+      "values":[
+        {
+          "name":"normal"
+        }
+      ],
+      "version": [
+        {
+          "name": "v3.0"
+        }
+      ],
+      "description": [
+        {
+          "name": "Text spacing(px)"
+        }
+      ],
+      "restrictions": [
+        {
+          "name": [
+            "enum",
+            "length",
+            "percentage"
+          ]
+        }
+      ]
     }
   ],
   "atDirectives": [