body {background-image:url(gradient2.jpg);
      background-repeat: repeat-x;}
div{border:5px solid black;
    padding:10px;
    margin:0px;}
div.header { width:800px;
             margin-left:auto;
             margin-right:auto;
             background-color:#E6E6E6;}
div.menu {height:20px;
          width:814px;
          padding:3px;
          margin-left:auto;
          margin-right:auto;
          background-color:#E6E6E6;}
.menu ul {margin:0px; padding:0px;}
.menu ul li {display:inline-block; width:150px;}
div.main {min-height:500px;
          width:800px;
          margin-left:auto;
          margin-right:auto;
          background-color:#E6E6E6;
    text-align: center;
}
div.plain {border:0px;
           margin-left:auto;
           margin-right:auto;}