Our detectives are back with the following intel on this WordPress site
The site is using the UTSU theme theme by Romeo Patrick Ira .
We could identify 8 plugins (there might be more) - Contact Form 7 , revslider , Sticky Menu, Sticky Header (or anything!) on Scroll , u-shortcodes , WooCommerce , WP Job Manager , WP-PageNavi and WPB Product Slider for WooCommerce
Sticky Menu or Sticky Header lets you stick any element at the top of the screen when you scroll, or create a floating menu.