diff --git a/section.scss b/section.scss
index dd1fec5..57eaf7b 100644
--- a/section.scss
+++ b/section.scss
@@ -1,25 +1,29 @@
 @import "_mixins", "_vars";
 
-.box.orange {
+section.box.orange {
     border-top: 3px solid #FBA026;
 }
 
-.box.red {
+section.box.red {
     border-top: 3px solid #B8312F;
 }
 
-.box.green {
+section.box.green {
     border-top: 3px solid #41A85F;
 }
 
-.box.blue {
+section.box.blue {
     border-top: 3px solid #2C82C9;
 }
 
-.box.purple {
+section.box.purple {
     border-top: 3px solid #553982;
 }
 
+section.box.darkblue {
+    border-top: 3px solid #2969B0;
+}
+
 .box {
     @include box-sizing(border-box);
     display: inline-block;
diff --git a/styles.css b/styles.css
index c517465..75e3a3d 100644
--- a/styles.css
+++ b/styles.css
@@ -3949,6 +3949,11 @@ div.alert {
   border: 2px solid #85b0ee;
   color: #4865a5; }
 
+.slider {
+  overflow-x: auto; }
+  .slider ul {
+    display: inline; }
+
 /* Global */
 /* Content Container */
 /* Content box */
@@ -4192,6 +4197,9 @@ article a {
 .unseen {
   font-weight: bold; }
 
+[data-href] {
+  cursor: pointer; }
+
 /* Global */
 /* Content Container */
 /* Content box */
@@ -4611,21 +4619,24 @@ main {
 /* Content box */
 /* Navigation */
 /* Colors */
-.box.orange {
+section.box.orange {
   border-top: 3px solid #FBA026; }
 
-.box.red {
+section.box.red {
   border-top: 3px solid #B8312F; }
 
-.box.green {
+section.box.green {
   border-top: 3px solid #41A85F; }
 
-.box.blue {
+section.box.blue {
   border-top: 3px solid #2C82C9; }
 
-.box.purple {
+section.box.purple {
   border-top: 3px solid #553982; }
 
+section.box.darkblue {
+  border-top: 3px solid #2969B0; }
+
 .box {
   -moz-box-sizing: border-box;
   -webkit-box-sizing: border-box;