Add an ELS Grid Element to your layout and if you click the check for dynamic results these will be fetched for you automatically as your scroll.

Auto-fetching supports Content Blog and Custom Articles data sources as well as Smart Search Results.

Add an item and create your layout - the ELS Modal element works really well as a way to show more information about your article. 

Remember to set the dynamic content data source. 

• If you choose 'Articles' as your data source the number of items returned with each update is determined by the content blog/smart search menu item - as if pagination was active.
• The same is true for 'Smart Search Results'
• If you choose 'Custom Articles' as your data source the number of items returned with each update is determined by the count set in your data source.

Masonry layout options are available and you can choose whether or not to offer the grid/list view switcher buttons

Choose the number of columns to show in the grid view.

The grid view gracefully switches to a list view on smaller devices but you can choose to switch using the List/Grid Buttons.