add cursor help

Author: hemanta-gayen

playground/index.html

@@ -52,7 +52,7 @@
     tbody tr { transition: background .15s; }
     tbody tr:nth-child(even) { background: #f0f0f5; }
     tbody tr:hover { background: #e4e4ef; }
-    .val-cell { font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace; font-size: .75rem; color: #444; max-width: 280px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+    .val-cell { cursor: help; font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace; font-size: .75rem; color: #444; max-width: 280px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
     .duration-cell { font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace; font-size: .75rem; color: #666; text-align: right; white-space: nowrap; }
     details { margin-top: .5rem; }
     summary { cursor: pointer; font-weight: 600; color: #666; font-size: .8125rem; }