Shoelace.css is a starter kit, not a framework. Think of it as a CSS reset sprinkled with helpful components. Bootstrap users will find it familiar, yet refreshing.
Shoelace is highly customizable through CSS variables. It doesn’t require Less, Sass, or any preprocessing at all. Just link to shoelace.css and add customizations directly to your stylesheet.
You can use the CDN version or download the source manually.