Landing tabs: title to appear when tabs stick to top, add css for the sections, css for featured tabs

library-css/landing-utils.css

@@ -315,4 +315,18 @@
 
 .landing-background-default-color {
   background-color: var(--default-color);
-}
+}
+
+.landing-section{
+  min-height: 70vh;
+}
+
+#landing-sections .landing-section:not(:last-child):before{
+  background-color: var(--background-primary);
+  opacity: 0.3;
+}
+
+#landing-sections .landing-section:not(:last-child){
+  border-bottom: solid 5px var(--background-primary);
+
+}