Now before we get into building a photo gallery theme for WordPress, we'll create the layout in HTML. As explained in the introduction, we'll use the W3.CSS framework to create this layout. For this, first we'll create a new folder and call it photogenik_html:

Next, inside the folder, we'll create a couple of files and folders. We'll create the index.html, style.css, and single.html files and also have a folder called images:

The single.html file is going to represent the single image. Once we click on one of the images in the gallery, it'll take us into this folder.