Are you looking to use Webflow tabs with a rich text CMS field? By default Webflow doesn't allow rich text fields to be placed in the tabs by default. This technique uses a bit of JavaScript so if you change the classes be sure to update the code within the page settings. The arrows in this demonstration are from Font Awesome and the colors can also be updated in the page settings.

A Webflow slider created with SplideJS tied into Webflow's native CMS system. This slider features a draggable slider with a progress bar. In order to get this to work properly you'll need to add the HTML embed splide code as well as the code found within the page settings.