Within Hostinger Website Builder, open the Add elements panel on the left. Select the Instagram feed element, and drag and drop it to where you want it on your web page:
Click on the element to see more options (edit, duplicate, hide, delete, resize):
Click Edit feed, then click Connect Instagram, and enter your IG account login details. Here, you can also set how many posts (items) you want to display in total:
In the Layout settings tab, you can set the number of items per row, and specify the gap size between photos:
NOTES:
Instead of using the Instagram feed element, you may also insert a dedicated Instagram feed section
Once you add a new post to your Instagram account, the feed on your website will update automatically, too