JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://baijs.nl/tinyscrollbar/js/jquery.tinyscrollbar.min.js"></script>
<dl><dt>Related News</dt>
    <dd id="newsScroll">
        <div class="scrollbar"><div class="track"><div class="thumb"></div></div></div>
        <div class="viewport">
            <div class="overview">
            <ul>
                <li><a href="#">news1</a></li>
                <li><a href="#">news2</a></li>  
                <li><a href="#">news3</a></li>  
                <li><a href="#">news4</a></li>  
                <li><a href="#">news5</a></li>  
                <li><a href="#">news6</a></li>  
                <li><a href="#">news7</a></li>  
                <li><a href="#">news8</a></li>  
             </ul>
            <!--/overview--></div>
        <!--/viewport--></div>
    </dd>
</dl>

CSS

dl { width: 350px; padding: 10px; background: #f6f6f6; }
dt { padding-bottom: 10px; border-bottom: 1px solid #ccc; }
dd { position: relative; }

/* style for tinyscrollbar */
.scrollbar {
    float: right;
    width: 10px;
    background: #ccc;
    position: relative;
}
.thumb {
    width: 10px;
    background: red;
    cursor: pointer;
    position: absolute;
}
.viewport {
    width: 330px;
    height: 70px;
    overflow: hidden;
    position: relative;
    background: #efefef;
}
.overview {
    position: absolute;
    top: 0; left: 0;
}

JavaScript

function scrollOnOff(width) {
    width = parseInt(width);
    if(width < 650){
        $(window).trigger('newsScroll');
        $('#newsScroll').attr('id','spNewsScroll');
    } else {
      //  $('.scrollbar').hide();
        $('#spNewsScroll').attr('id','newsScroll');
    }
};
        
$(function() {
    
    $(window).bind('newsScroll', function(e) {
        $('.scrollbar').show();
        $('#newsScroll').tinyscrollbar();
    });
    
    var screenWidth = $(this).width();
    scrollOnOff(screenWidth);
    
    $(window).on("resize", function(event){
        var w = $(this).width();
        scrollOnOff(w);                
    });
    
});