Untitled

<?php ob_start();?>
<html>
<head>
<title>
</title>
</head>
<style>
body{
background-color:#CCC;
margin:0px;
color:#FFF;
}
#page{
background-color:#666;
border:5px ;
width:75%;
margin-left:auto;
margin-right:auto;
padding:15px;
opacity:0.4;
filter:alpha(opacity=40);
border-radius: 10px;
color:#FFF;
}
#regi{
background-color:#666;
border-radius: 10px;
width:25%;
height:30%;
opacity:0.4;
filter:alpha(opacity=40);


}

</style>
<body>
<div id="page">
<h1 align="center">LOGIN</h1>
</div>

<form  method="POST">

<?php
session_start();
$con=mysql_connect('localhost','root') or die('error');
$query=mysql_select_db('login',$con);

if(isset($_POST['submit'])){

$aw=$_POST['username'];
$_SESSION['username']=$aw;
$we=$_POST['password'];
$_SESSION['password']=$we;


$sql=mysql_query("SELECT * FROM login_tbl WHERE username = '$aw' && password = '$we'   ");
while($rows=mysql_fetch_array($sql)){
$_SESSION['username'];
$user=$rows['username'];
$pass=$rows['password'];


if($user==$aw && $pass==$we){
header('location:home.php');
}

else{
echo 'error';
}


}
}


?>

<br>
<br>
<br>
<br><center>
<div id ="regi">

<center><br><br><br>
USERNAME:<input type="text" name="username" id="username">
<br/>
PASSWORD:<input type="password" name="password" id="password">
<br/>
<input type="hidden" name="lastname" id="lastname" ">
<input type="submit" name="submit" value="Submit">

</form>

</body>
</html>