This is a custom particle to incluide Uikit 3.15.9 on Gantry 5 framework
Copy the files uikit.html.twig and uikit.yaml on you server (path: template_path/custom/particle) Note: if custom folder does not exists you have to create it.
Copy the file uikit.min.css inside the folder template_path/custom/uikit/css (if the folder does not exists, you have to create it)
Copy the file uikit.min.js and uikit-icons.min.js inside the folder template_path/custom/uikit/js (if it does not exists, you have to create it)
Note: You can dowload the uikit framework files .css and .js from the uikit 3 oficial site.
On your gantry template, go to Page Setting and drop the uikit 3 particle inside ATOMS area (in the bottom of the configuration page)