diff --git a/spec/index.html b/spec/index.html
index 295aadc..2856830 100644
--- a/spec/index.html
+++ b/spec/index.html
@@ -60,10 +60,17 @@
     figure { text-align: center; }
     table.simple td, table th { border: 1px solid #ddd; padding: 0.2em 0.5em; }
     ol ol { list-style-type: lower-latin; }
-    .grammar td { font-family: monospace;}
-    .grammar-literal { color: gray;}
-    code {color: #ff4500;}  /* Old W3C Style */
-    div.abnf {margin-left: 1em;}
+    .grammar td { font-family: monospace; }
+    .grammar-literal { color: gray; }
+    code { color: #ff4500; }  /* Old W3C Style */
+    div.abnf { margin-left: 1em; }
+    @media (max-width: 850px) {
+        table { overflow-wrap: anywhere !important; }
+        .simple th, .simple td { font-size: 14px; }
+    }    
+    @media (max-width: 767px) {
+        table { word-break: normal; /*max-width: 80vw;*/}
+    }
   </style>
 </head>