Eazy Flickity Slider lets you create responsive sliders, without being overly complex. Adding slides is as easy as adding a post. Creating a slider works like adding a post to a category. You can then use a shortcode to get the slider to display on your site. There is a shortcode generator that shows up next to the add media button on the edit post & edit page sections of the admin. The plugin uses flickity.js by Metafizzy to animate the slider.