Improve table's css

Author: GuillaumeGomez

css/main.scss

@@ -51,3 +51,16 @@ $on-laptop:        800px;
 .highlight {
     background-color: #eef;
 }
+
+td, th {
+  border-bottom: 1px solid #eee;
+  border-right: 1px solid #eee;
+}
+
+th {
+  border-top: 1px solid #eee;
+}
+
+td:first-child, th:first-child {
+  border-left: 1px solid #eee;
+}