我的网站上的一个页面有一个奇怪的问题，因为当我刷新它时，有些东西完全消失了，有些东西四处移动。
这是它应该看起来的样子，并且在第一次加载时会这样做。
这就是我刷新页面时的样子。
<?php
session_start();
if(!isset($_SESSION['usrName'])){
header('location:login.php');
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<!-- Appears in the title bar in web browser -->
<title>JWT Haulage Group Drivers Area</title>
<meta name="description" content="JWT Haulage Group Ltd is a virtual trucking company for Euro Truck Simulator 2, UK and
German Truck Simulator. We have over 600 drivers registered already."> <!-- Meta Stuff Required -->
<meta name="keywords" content="JWT, JWT Haulage, JWT Haulage Group, JWT Haulage Ltd, Euro Truck Simulator 2, ETS2,
UK Truck Simulator, UKTS, German Truck Simulator, GTS, Virtual Trucking Company, VTC">
<meta http-equiv="content-type" content="text/html; charset=utf-8" /> <!-- Meta Stuff Required -->
<link rel="stylesheet" type="text/css" href="styles.css" /> <!-- CSS -->
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script> <!-- JQuery -->
<script type="text/javascript">
var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-37114333-2']);
_gaq.push(['_trackPageview']);
(function() {
var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
})();
</script>
<script>
var currentTime = new Date()
var month = currentTime.getMonth() + 1
var day = currentTime.getDate()
var year = currentTime.getFullYear()
</script>
</head>
<body>
<div class='header'>
<img src="./images/JWT%20Logo.png" alt="JWT Haulage Group Ltd" width="360" height="86"/>
<h2>Drivers Area</h2>
<div class='header-links'>
<a target="_blank" href="http://www.facebook.com/pages/JWT-Haulage-Group-Ltd-In-Partnership-With-Schumacher-Logisitics-Services/166705200103425?fref=ts" title="Like us on Facebook"><img src='http://n.vdsh.net/hosting/resources/gosocial/png/32/facebook.png' alt="Facebook Page"/></a>
<a target="_blank" href="http://plus.google.com/share?url=http://www.jwt-group.co.uk" title="Share me on Google+"><img src='http://n.vdsh.net/hosting/resources/gosocial/png/32/google.png' alt="Google+ Icon"/></a>
<a target="_blank" href="http://twitter.com/share?url=http://www.jwt-group.co.uk&text=@JWTHaulageltd%20Been%20driving%20around%20europe%20for%20JWT%20Haulage.%20Come%20and%20join%20me%20at%20www.jwt-group.co.uk" title="Tweet about me"><img src='http://n.vdsh.net/hosting/resources/gosocial/png/32/twitter.png' alt="Twitter Icon"/></a>
<a target="_blank" href="http://www.jwthaulageltd.freeforums.org" title="JWT Haulage Forum"><img src='http://n.vdsh.net/hosting/Dan/JWT/images/JWT%20Forums%20Logo.png' alt="JWT Haulage Forum"/></a>
<a target="_blank" href="http://www.jwthaulagegroupts2.freeforums.org" title="JWT Haulage ETS2 Forum"><img src='http://n.vdsh.net/hosting/Dan/JWT/images/JWT%20ETS2%20Forums%20Logo.png' alt="JWT Haulage ETS2 Forum"/></a>
<a target="_blank" href="http://www.facebook.com/groups/JWTHaulageLtd/" title="Join our driver group on facebook"><img src='http://n.vdsh.net/hosting/Dan/JWT/images/facebook_group.png' alt="Facebook Driver Group"/></a>
</div>
<ul class='drivers-navigationbar'>
<li><a href="drivers-index.php" class='pageinactive' >Home</a></li>
<li><a href="drivers-tracker.php" class='pageinactive'>Tracker</a></li>
<li><a href="drivers-spot.php" class='pageinactive'>Spots</a></li>
<li><a href="drivers-log.php" class='pageactive'>Logs</a></li>
<li><a href="drivers-account.php" class='pageinactive'>Account</a></li>
<li><a href="logout.php" class='pageinactive'>Logout</a></li>
</ul>
</div>
<div class='container'>
<div class='content'>
<div class='inthreetrucksimbar-apply'>
<div class='inthreetrucksimbaruk'>
<img src="./images/JWT%20UKTS-GTS%20Logo.jpg" alt="JWT Haulage Group Ltd UKTS/GTS" width="259" height="95"/>
</div>
<div class='inthreetrucksimbareuro2'>
<img src="./images/JWT%20International%20Logo.png" alt="JWT Haulage Group Ltd ETS2" width="360" height="86"/>
</div>
</div>
<div class='jwtinternational-application'>
<h4>JWT Log Form</h4>
<h4>WARNING: do not use the below form as it is currently being worked on</h4>
The following form can be used to log your loads for JWT in ETS2.<br><br>
<form name="jwtinternational-application-form" class='jwtinternational-application-form' action="apply-send.php"
method="post">
<div class='jwtinternational-application-left'>
<input type="text" class="text-box" name="forum-name" placeholder="Registered Forum Name"/><br>
<input type="text" class="text-box" name="first-name" placeholder="First Name"/><br>
<input type="text" class="text-box" name="surname" placeholder="Surname"/><br>
</div>
<div class='clear'>
</div>
<input id="submit" type ="submit" value= "Submit"/>
</form>
</div>
</div>
<div class='clear'>
</div>
<div class='footer'>
<div class='footer-text1'>
<h5>
<script>
document.write(day + "/" + month + "/" + year)
</script>
</h5>
</div>
<div class='footer-text2'>
<h5>Copyright © <script>document.write(year)</script> JWT Haulage Group VTC. All rights reserved.</h5>
</div>
<div class='clear'>
</div>
</div>
</div>
</body>
</html>