Problemas con un espacio en blanco ¬¬

[MasterXNicoX]

Miren, esto es lo que puse en el CSS,

body { background-color: #CCCCCC;color: #0066FF;margin-top: 0px auto;margin-right: 0px;margin-bottom: 0px;margin-left: 0px;marginheight:0;topmargin:0;leftmargin:0; rightmargin:0;margin-top: 0 auto;padding: 0;font: 80% verdana, arial, sans-serif;}
dl, dt, dd, ul, li {margin: 0 auto;padding: 0;list-style-type: none;}
#menu dl {float: left;width: 16%;margin: 0 auto 0px;}
#menu dt {cursor: pointer;text-align: center;font-weight: bold;background: #999999;border: 2px solid #000000;}
#menu dd {border: 2px solid #000000;}
#menu li {text-align: center;background: #777777;}
#menu li a, #menu dt a {color: #006600;text-decoration: none;display: block;height: 100%;border: none}
#menu li a:hover, #menu dt a:hover {background: #888888;}


#navcontainer ul{text-align: center;padding: 0;}
#navcontainer li{display: inline;margin: 0 -1px;}
#navcontainer li a{padding: 0px 10px;color: #111;background-color: #888;border: 2px solid #000000;text-decoration: none;}
#navcontainer li a:hover{color:#00FFFF;border: 2px solid #0000FF;border-top: 2px solid #0000FF;border-bottom: 2px solid #0000FF;}


a:link {color: #0000FF;text-decoration: none;}
a:visited {color: #0000FF;text-decoration: none;}
a:hover {text-decoration: none;}
a:active {color: #0000FF;text-decoration: none;}
a.hidden {color: #0000FF;text-decoration: none;}
a.hidden:visited {color: #0000FF;text-decoration: none;}
a.hidden:hover {color: #0000FF;text-decoration: none;}
a.hidden:active {color: #0000FF;text-decoration: none;}
a.nav:link {color: #0000FF;padding: 2px;text-decoration: none;}
a.nav:visited {color: #0000FF;padding: 2px;text-decoration: none;}
a.nav:hover {color: #0000FF;background-color: #666666;padding: 2px;text-decoration: none;}
a.menu {font-family: arial, helvetica, sans-serif;font-weight: bold;text-decoration: none;}
a.menu:hover{font-family: arial, helvetica, sans-serif;font-weight: bold;text-decoration: none;
letter-spacing: 1px;}
a.box{padding: 3px;background-color: #FFFFFF;text-decoration: none;border: medium solid #000000;color: #000000;font-family: Verdana, Arial, Helvetica, sans-serif;}
a.box:hover{color: #000000;padding: 3px;text-decoration: none;background-color: #666666;border: medium solid #3366FF;color: #FFFFFF;font-family: Verdana, Arial, Helvetica, sans-serif;}


intente poner las cosas que me dijeron, pero no se soluciona :(