some style update

styles/main.css

@@ -62,15 +62,23 @@ hr {
 
 /* post lists on the main page */
 #posts-section ul,
-#sticky-posts-section ul {
+#sticky-posts-section ul,
+#links-section ul {
   list-style: none;
   padding: 0;
 }
 #posts-section li,
-#sticky-posts-section li {
+#sticky-posts-section li,
+#links-section li {
   margin: 0.5em 0;
 }
 
+#posts-section li::before,
+#sticky-posts-section li::before,
+#links-section li::before {
+    content: "> ";
+}
+
 /* post.html */
 .back-link {
   display: inline-block;