Social Network with PHP2

<!Doctype HTML>
<head>
<title>Social Network with PHP1</title>
<link rel="stylesheet" href="styles/style.css"
media="all"/>

</head>

<body>

<!-----Main Container Starts--->
<div class="container">



<!-----Header wrapper Starts--->

<div id="header_wrapper">
<img src="images/logo.png" style="float:left;"/>

<!-----Header Starts--->

<div id="header">

</div>

<!-----Header Ends--->


</div>
<!-----Header wrapper Ends--->










</div>

<!-----Main Container Ends--->



</body>
</html>




css reset code

body{  line-height:1px; background:#E6E6FA;           }


.container{
padding:0;
margin:0;
background:#E6E6FA;




}



#header_wrapper{

width:100%;
height:100px;
border-bottom:5px solid brown;
background:#1E90FF;
padding:10px;




}



#header{


width:1000px;

height:100px;
margin:0 auto;





}