add common custom to demo

static/demo/_custom.scss

@@ -1,4 +1,24 @@
 @charset "UTF-8";
+
+
+/* Custom selection color because that can be done and it's cool */
+::selection {
+    color: white;
+    background-color: darken($primary-color, 10%);
+}
+
+/* remove annoying border I can't remove with EO vars at the moment */
+div.links-list ul > li:not(:last-child) {
+  border-bottom: 0;
+}
+
+/* center "Code de suivi" title */
+
+div#tracking-code h3 {
+  padding: 0;
+  color: #333333;
+}
+
 @font-face {
     font-family: "Oswald";
     font-weight: 300;