JSFiddle - React, Tailwind, and code Playground

HTML

<marquee><div id="thakan">Thakaan ka Ant, Shakti Turant!!</div></marquee>

JavaScript

var col=0;
function changeMarqueeColor()
{
    if(col==0)
    {
        //document.getElementById("p2").style.color="blue";
        documrnt.getElementById("thakan").style.color="red";
        col=1;
    }
    else
    {
        documrnt.getElementById("thakan").style.color="blue";
        col=0;
    }
    setTimeout("changeMarqueeColor()",2500)
}
// b=setInterval("changeMarqueeColor();",500);
changeMarqueeColor()