Font size display

please i am trying to display different words with differents size say hi, h2, h3 on the same image at different spot.
my H1 is reacheasy , but i want the username to display with H3
<h1>Reacheasy <?php echo $_SESSION[‘username’];?></h1>(this is the line on the php code)



<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <title>Reacheasy - Foremost website for easy reach of things globally</title>
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>
<link href="reasy.css" rel="stylesheet" type="text/css"/>  
</head>
  <body>
<div id="outer">
<div id="page">
<div id="header">
<h1>Reacheasy <?php echo $_SESSION['username'];?></h1>
  <ul id="nav">
    <li class="current"><a href="index.php">Home</a></li>
     <li><a href="women.php">Women</a></li>
     <li><a href="men.php">Men</a></li>
     <li><a href="children.php">Children</a></li>
     <li><a href="homeandappliances.php">Home&amp;Appliances</a></li>
     <li><a href="visionandsound.php">Vision&amp;Sounds</a></li>
      <li><a href="motoring.php">Motoring</a></li>
      <li><a href="homemore.php">More</a></li>
      <li><a href="homecontact.php">Contact us</a></li>
  </ul>
</div> <!--end of navigation div -->
</div>
<div id="navigation">
  <div>
<form action='relogin.php' method='POST' class='rl'>
<fieldset>
<legend>Login</legend>
	<div>
	<label for='username' class='fixedwidth'>Username</label>
	<input type='text' name='username' id='username'/>
	</div>
	
	<div>
	<label for='password' class='fixedwidth'>Password</label>
	<input type='password' name='password' id='password'/>
	</div>
<div class='buttonarea'>
	<input type='submit' value='Log in'>
	</div>
</form>
<p>
<a href='reregister.php'>Register </a>
</p>
</div>
</fieldset>

<div id="advert">
<ul>
<li><iframe src="http://rcm-uk.amazon.co.uk/e/cm?t=r0ab-21&o=2&p=20&l=ur1&category=generic&banner=0YCR1B12KQC9EA34FF02&f=ifr" width="120" height="90" scrolling="no" border="0" marginwidth="0" style="border:none;" frameborder="0"></iframe></li>
 <li><iframe src="http://rcm-uk.amazon.co.uk/e/cm?t=r0ab-21&o=2&p=11&l=ur1&category=endless&banner=1BXHM01F8MNJJGXPV2R2&m=endless&f=ifr" width="150" height="600" scrolling="no" border="0" marginwidth="0" style="border:none;" frameborder="0"></iframe></li>
</ul>
</div>
</div> <!--end of navigation div -->

/*
CSS for Reacheasy site
*/
	body,html {
 	margin: 0;
}
 
#page {
 	width: 1060px;
 	margin: 0 auto;
 	position: relative
 	/* is the same as: 
 	margin-top: 0;
 	margin-bottom: 0;
 	margin-left: auto;
 	margin-right: auto;
 */
}

/* sticky footer */
/*Opera Fix*/
body:before {
    content:"";
    height:100%;
    float:left;
    width:0;
    margin-top:-32767px;
}
#outer:after {
    clear:both;
    display:block;
    height:1%;
    content:" ";
}
/* ...#003399; #383838;*/
/*
CSS for Reacheasy site
*/
html, body {
    height:100%;
    margin:0;
    padding:0;
    border:none;
background:#003399;
}
#outer {
    width:1060px;
    margin:auto;
    min-height:100%;
    margin-top:-52px;
    border-left:1px solid black;
    border-right:1px solid black;
background: #A1A1A1 url(backgrounds/nav-bg.jpg) repeat-y left top    
}
* html #outer {
    height:100%
}
h1 {
    font-size: xx-large;
    color: white;
    padding: 2em 0 .2em .4em;
    margin: 0;
    background: url(img/header.jpg) repeat-y right;
}
ul#nav {
    height: 2em;
    list-style: none;
    margin: 0;
    padding: .2em 0;
    margin:0;
    background: url(img/tabs.gif);
}
ul#nav li {
    background: #48f url(img/tabs.gif);
    float: left;
    margin: 0 1px 0 0;
    padding-left: 10px;
    border-right: 1px solid #A1A1A1;
}
ul#nav a {
    background: url(img/tabs.gif) 100% 0;
    color: #008;
    display: block;
    float: left;
    height: 2em;
    line-height: 2em;
    padding-right: 10px;
    text-decoration: none;
}
ul#nav li.current {
    background-color: #48f;
    background-position: 0 -60px;
}
ul#nav li.current a {
    background-position: 100% -60px;
    color: #fff;
    font-weight: bold;
}
#navigation {
    width: 180px;
    float:left;
}

#navigation li {
    margin: 0 1px 0 0;
    padding-left: 0px;
    text-decoration: none;
   list-style: none;
}
#navigation a {
    color: #008;
    padding-right: 10px;
    text-decoration: none;
}

#navigation a:visited{
 color: #008;
}

#bodycontent {
    float:right;
    width:880px;
    background:black;
}




form.rl{
	padding:0;
	margin:0;
	margin-top:-15px;
	line-height:150%;

}

form.rl label {
	font-weight:bold;
	font-size: small;
}

form.rl label.fixedwidth{
	display:block;
	width: 240px;

}

form.rl .buttonarea input{
colour: white;
font-weight; bold;
padding: 5px;
border: 1px solid white;
}

form.rl fieldset{
border:2px solid navy;
padding:10px;
width: 150px;
margin-top:30px;
}

form.rl legend{
font-weight:bold;
font-size: small;
colour: navy;
}

#header {
    width:100%;
    border-top:52px solid #fff;
    border-bottom:1px solid #A1A1A1;
}
#footer {
    width:1060px;
    clear:both;
    height:50px;
    border-top:1px solid #000;
    background-color:#fff;
    border-bottom:1px solid #000;
    color:  #000000;
    text-align:center;
    margin:0 auto;  
}

ul#footlink {
padding: 0px;
margin: 0px;
list-style-type: none;
float: left;
width: 100%;
color: #fff;
}

ul#footlink li { 
display: inline;
text-align:center; 
}

#bannercontainer{
       width: 800px;
       height: 300px;
       padding: 0;
       margin-left: auto;
       margin-right: auto;
       background: #eee;
       border: 1px solid #000;
    }

    #bannercontainer a{
       display: block;
       width: 800px;
       height: 300px;
       padding: 0;
       background:#eee url(img/pr.jpg) 0 0 no-repeat;
    }

    #bannercontainer a:link,#bannercontainer a:visited{
       background:#eee url(img/pr.jpg) 0 0 no-repeat;
    }

    #bannercontainer a:hover{
       background:#eee url(img/hp.jpg) 150px 0 no-repeat;
    }
#promo-banners{
  width:860px;
}

.promo-banner{
   border: medium none;
   display:block;
   float: left;
   padding: 0 19px 5px 0;
   width: 230px;
}
.promo-seo{
color:white;
display:block;
float:left;
font:12px arial;
height:75px;
margin-bottom:5px;
padding:7px 5px 0;
text-align:left!important;
width:218px;
}
.promo-seo-link{
color:#bdbdbd;
text-decoration:none;
}
.promo-seo-link:visited{
color:#bdbdbd;
}

If you want a different font size you don’t use a H3 to set that within a H1 (it is illegal markup) markup is structural not visual. You would insert a SPAN to wrap the username most likely with a class and use the CSS to style the username font size, e.g. span {font-size: 10px;}

thanks have read it and it worked

No problem glad it helped you find the answer.