JSFiddle - React, Tailwind, and code Playground

HTML

Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down Scroll Down

JavaScript

$(document).scroll(function(){
    $("html").css("color","blue");
    if($(document).scrollTop()>"100")
      $("html").css("color","red");
});