#header468x60ad{
border: 1px solid black;
float: right;
margin-right: 150px;
margin-top: 15px;
}

#home300x250ad{
border: 1px solid black;
height: 250px;
width: 300px;
margin: auto;
margin-top: 100px;
}

#sidebar300x250ad1{
border: 1px solid gray;
position: static;
margin-bottom: 5px;
margin-top: 3px;
}

#sidebar300x250ad2{
border: 1px solid black;
float: left;
}