The easiest customization technique
It's a pain to change the design of an existing layout using CSS. If you have no prior knowledge of CSS, you'll be doomed. You will end up hiring a developer to customize an HTML template and launch your website. Or scratch your back thinking where to make changes.
Slick introduces the easiest customization technique through HTML code. Now you can change the margin or padding by typing m-2 or pb-3 where m defines margin and pb defines the padding bottom. The same goes for other important classes - fw for font weight, fs for font size, px for padding to X axis and so on.