tweak debug table layout

Change-Id: I40a3a1e6f48ef75c0787f45f56001c7245ab8c65
diff --git a/klaxon/templates/base.html b/klaxon/templates/base.html
index 3148fca..e135745 100644
--- a/klaxon/templates/base.html
+++ b/klaxon/templates/base.html
@@ -14,9 +14,12 @@
             .narrow {
                 max-width: 30rem !important;
             }
-            .panel-block {
+            .panel-block, .table {
                 word-break: break-word; /* Fixes iPhone SE-sized screens. https://github.com/jgthms/bulma/pull/1641 */
             }
+            .debug-table-key {
+                word-break: initial; /* But don't break words of keys in the k/v pair debug table. */
+            }
         </style>
     </head>
 
diff --git a/klaxon/templates/debug.html b/klaxon/templates/debug.html
index 0b054b2..120faf8 100644
--- a/klaxon/templates/debug.html
+++ b/klaxon/templates/debug.html
@@ -10,7 +10,7 @@
             <tbody>
                 {% for k, v in vars.items() %}
                 <tr>
-                    <td>
+                    <td class="debug-table-key">
                         {{ k }}
                     </td>
                     <td>