Adds some styling for tables

static/css/custom.css

@@ -15,3 +15,21 @@ figure img {
   position: absolute;
   left: 5px;
 }
+
+/* Styling of tables */
+
+
+table {
+  border-collapse: collapse;
+}
+
+table, th, td {
+  border: 1px solid black;
+}
+
+th {
+  background-color: #4CAF50;
+  color: white;
+}
+
+tr:nth-child(even) {background-color: #f2f2f2;}