This page utilizes the WordPress [gallery] shortcode to display a gallery of images. When this shortcode is combined with the Alyeska theme, you can see below how images are given a nice border along with being opened up in a lightbox popup.
Disclaimer: This page is a sample content page provided to you with purchase of the Alyeska WordPress theme. It includes sample HTML code and shortcode usage examples. These sample content pages are not dynamic and do not include functionality outside of static code you’re copying into your WordPress pages or posts. Additionally, a WordPress XML import file is provided for this set of sample content pages.