Code tạo giao diện đẹp mắt

#posts li {
background:#fff url(http://nguyenhuudiep.webng.com/GD%20XTuan/hop03_tuan.gif) top left no-repeat;
}

#smallposts li {
background:#fff url(http://nguyenhuudiep.webng.com/GD%20XTuan/hop03_tuan.gif) top left no-repeat;
}
.document li {
background: url(`http://nguyenhuudiep.webng.com/GD%20XTuan/hop03_tuan.gif`) no-repeat center 0px;
}

.document .over {
background: transparent url(http://nguyenhuudiep.webng.com/GD%20XTuan/hop02.gif) no-repeat center 0px;
}
.document a , .document a:visited{
color: blue;
}

.document a:hover {
text-decoration: underline;
cursor: pointer;
color: red;
}

.docgroup, .entrygroup, .entry, .doc {
background: #FFFFFF;
}

.docgroup h2, .entrygroup h2, .entry h2, .doc h2 {
padding: 10px 10px 0px 10px;
margin: 0px 0px 0px 0px;
min-height: 38px;
clear: both;
background: #FFFFFF;
overflow-x: hidden;
font-size: 14px;
border-top: 3px solid #1B249E;
}

.docgroup .content, .entrygroup .content, .entry .content, .doc .content {
background: #FFFFFF;
}

.entrygroup, .entry, .doc {
background: #FFFFFF;
color: black;
}
a:link {
color: blue;
text-decoration: none;
}
a:active {
color: blue;
text-decoration: none ;
}
a:visited {
color: blue;
text-decoration: none
}
a:hover {
color: red;
text-decoration: underline;
}
.menutop {
background:url(http://nguyenhuudiep.webng.com/GD%20XTuan/menu01.gif) repeat-x center center;
border: 0px;
border-top: 1px solid white;
font-weight: normal;
}
.menutop a:hover {
background:url(http://nguyenhuudiep.webng.com/GD%20XTuan/menu02.gif) repeat-x center center;
text-decoration: none;
}
.menutop a:current {
color: red;
}
.menutop a {
background:url(http://nguyenhuudiep.webng.com/GD%20XTuan/menu01.gif) repeat-x center center;
border-RIGHT: 1px solid #FFFFFF;
}
.menutop li {
border-right: 1px solid #FFFFFF;
}

#top a:link, #top a:visited {
color: white;
}

.dropmenudiv {
border: 0px none;
position:absolute;
line-height:20px;
z-index:9999;
background-color: #3D6CCA;
width: 190px;
visibility: hidden;
filter: progid:DXImageTransform.Microsoft.Shadow(color=#CACACA,direction=135,strength=4); font-style:normal; font-weight:normal; font-size:12px; font-family:Verdana
}

.dropmenudiv a {
font-size: 11px;
color: white;
font-weight: normal;
height: 20px;
border: 0px;
border: 0px;
padding-left: 7px;
}
.dropmenudiv ul {
border: 0px solid #888;
padding: 0px;
margin: 0px;
}

.dropmenudiv li {
border: 0px;
border-bottom: dotted 1px white;
}
.dropmenudiv a:hover {