JSFiddle - React, Tailwind, and code Playground

HTML

<script src="ttp://code.jquery.com/jquery-2.1.1.min.js"></script>
<script type="text/javascript" src="http://code.jquery.com/jquery-2.1.1.min.js"></script>
<table style="border-collapse: collapse;">
	<tr>
		<td>
			<a href="http://zetlight.cz" target="_parent" id="ban">
			  <img src="http://rostlinna-akvaria.cz/bannery/led1.png" id="prvni" viditelne="1" style="opacity: 1;z-index: 5;position: relative;margin: 0 0;border-spacing: 0 0;padding: 0 0;display: inline-block;float: left;">
			  <img src="http://rostlinna-akvaria.cz/bannery/led2.png" id="druhy" style="position: relative;margin: 0 0;border-spacing: 0 0;padding: 0 0;display: inline-block;float: left;margin-left: -300px;">
			</a>
		</td>
	</tr>
	<tr>
		<td style="background-color: gray;height: 7px;"> 
			<div style="height: 7px;float: left;width: 0%;background-color: #0082ff;" id="load">
				&nbsp;
			</div>
		</td>
	</tr>

</table>

CSS

* {
  border: none;
  text-decoration: none;
  padding: 0 0;
  margin: 0 0;
  border-spacing: 0 0;
}

body {
  background-color: rgb(231, 231, 231);
}

JavaScript

$(document).ready(function() {

	setTimeout( function() {
	  casovac = setInterval(function() {animuj()}, 0);
	}, 0);

	function animuj() {

		if(String($("#prvni").attr("viditelne")) == "1") {
			$("#prvni").delay(2500).animate({
				   opacity: 0
			}, 500, function() {
				$("#prvni").attr("viditelne", "0");
			});
		} else {
			$("#prvni").delay(2500).animate({
				   opacity: 1
			}, 500, function() {
				$("#prvni").attr("viditelne", "1");
			});
		}
		


		$("#load").animate({
			    width: '100%'
		}, 3000, function() {
			    $("#load").css("width", "0%");
		}); 

	}

});