If possible, I am trying to create something like the below using just HTML, CSS, and Javascript. I know that the carousel below was built in React but I am not using that nor am I familiar with it. This carousel stretches across the whole screen but it looks like the picture(s) only takes up 65-75% of the width (highlighted in blue) and then the rest is a black box that never changes even when the pictures do. There are words that also overlap the black box and picture. The picture also has some gradient over it on the left side so that the black box nicely fades into the picture.

I am currently using a slideshow/carousel script from W3Schools (https://www.w3schools.com/howto/howto_js_slideshow.asp). I do not have bootstrap with this project either though I may be able to add it if needed. I tried dividing my container into columns so that one side could be 40% black and the other 60% could be the slideshow but that didn't work.

Sorry, I am still pretty new to all of this! Does anyone have suggestions on how to add a carousel kind of like this one without React (and preferably bootstrap)?