JSFiddle - React, Tailwind, and code Playground

HTML

<div class="news_container">
    <div class="news"> 
       <div class="text">
           <b>Lorem Ipsum</b> is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
        </div>    
    </div>
</div>

CSS

.news_container { 
  border: 1px solid black;
  width:350px;
  height: 300px;    
  overflow: hidden;
  position: relative;
  padding: 3px;
}

.news {
  position: absolute;  
  left: 0px;
  top: 0px;
}

JavaScript

var speed = 60; // pixels per second

function animate(obj) {
    // setup animation of specified block "obj"
    var text_height = obj.find(".text").height();
    // calculate distance of animation
    obj.animate({
        top: text_height
    }, //scroll upwards
    5000, "linear", function() {
        obj.css("top", -text_height/2); // scroll to start position
        animate(obj);
    });
}

$(".news_container").each(function() {
    var obj = $(this).find(".news");
    //we must create copy of content
    obj.find(".text").clone().prependTo(obj);
    $(this).mouseover(function() {
        obj.stop();
    }).mouseout(function() {
        animate(obj); // resume animation
    });
    animate(obj); // start animation
});