body
{
background-color:#b0c4de;
font-family:tahoma;
font-size:12px;
}
.container
{

}
.center_div
{
border:1px solid gray;
margin-left:auto;
margin-right:auto;
width:35%;
background-color:#d0f0f6;
text-align:center;
padding:8px;
}
.table_div
{
border:1px solid gray;
margin-left:auto;
margin-right:auto;
width:60%;
background-color:#d0f0f6;
text-align:left;
padding:8px;
}
#menu ul .item{display:none;}
#menu ul:hover .item{display:block;}
#menu{position:absolute;}