* {
padding: 0;
margin: 0;
}
body {
    color: #000000;
    background-color: #FFFFFF;
    font-family: Georgia, Times New Roman, Times, serif;
    font-size: 14px;
    text-align: justify;
}

img { 
clear:both; 
border:0;
}

a {
    color: #000000;
    background-color: #FFFFFF;
    font-family: Verdana, Arial, Helvetica, sans-serif;
}
a:visited {
    color: #000000;

}
a:active {
    color: #000000;

}
a:hover {
    color: #000000;

}
#gioithieu {
position:fixed;
left: 490px;
width:500px;
}
#gioithieu1{
float: left;
width:245px;
padding: 5px 5px 5px 0px;
} 
#gioithieu2{
float: right;
width:240px;
padding: 5px 0px 5px 5px;
}

#left {
width:480px;
height:225px;
background: url(images/banner.jpg) top no-repeat;
}

#nav {
float: right;
font: 10px tahoma,sans-serif; 
border-bottom: 5px solid;
}
#nav ul{
overflow: hidden;
padding: 5px 0 10px 0;
}
#nav li{
display: inline;
}
#nav li a {
color: #000;
text-decoration: none;
padding: 5px 11px 10px 10px;
}

#nav li a:hover {
color: #ff0000;
background: #000;
}

#noidung {
width:480px;
}
#noidung1 {
float: left;
width:230px;
padding: 5px 0px 5px 5px;
}
#noidung2 {
float: right;
width:230px;
padding: 5px 0px 5px 5px;
}