Update

src/_styles/base.css

@@ -39,3 +39,65 @@
 .hints-alert {
   word-break: break-word;
 }
+
+/* UnderLines */
+
+.markdown-section h1,
+.markdown-section h2,
+.markdown-section h3,
+.markdown-section h4,
+.markdown-section h5,
+.markdown-section h6 {
+  border-bottom: dotted;
+}
+
+/* Table responsive */
+
+table {
+  width: 100%;
+  border-top: 1px solid #ccc;
+  border-left: 1px solid #ccc;
+  border-collapse: collapse;
+  border-spacing: 0;
+}
+
+th,
+td {
+  width: 16.6%;
+  padding: 0.6em 1em;
+  border-right: 1px solid #ccc;
+  border-bottom: 1px solid #ccc;
+}
+
+@media screen and (max-width: 640px) {
+  body {
+    overflow: hidden;
+  }
+
+  table {
+    display: flex;
+  }
+
+  thead {
+    white-space: nowrap;
+  }
+
+  tbody {
+    overflow-x: scroll;
+    white-space: nowrap;
+  }
+
+  tbody tr {
+    display: inline-block;
+  }
+
+  tbody tr:last-child {
+    margin-left: -5px;
+  }
+
+  th,
+  td {
+    display: block;
+    width: auto;
+  }
+}