/* set up the overall width of the menu div, the font and the margins */
.menu {
font-family: arial, sans-serif; 
width:758px; 
height:33px;
margin:0; 
margin:0 0;
}
/* remove the bullets and set the margin and padding to zero for the unordered list */
.menu ul {
padding:0; 
margin:0;
list-style-type: none;
}
/* float the list so that the items are in a line and their position relative so that the drop down list will appear in the right place underneath each list item */
.menu ul li {
float:left; 
position:relative;
z-index: 990;
}
/* style the links to be 104px wide by 30px high with a top and right border 1px solid white. Set the background color and the font size.导航颜色，背景 */
.menu ul li a, .menu ul li a:visited {
display:block; 
text-align:center; 
text-decoration:none; 
width:74px; 
height:25px; 
color:#ffffff; 
line-height:25px; 
font-size:14px;
padding-top:5px;
}
/* make the dropdown ul invisible */
.menu ul li ul {
display: none;
}
/* specific to non IE browsers */
/* set the background and foreground color of the main menu li on hover */
.menu ul li:hover a {
color:#fff; 
font-weight:bold;
}
/* make the sub menu ul visible and position it beneath the main menu list item */
.menu ul li:hover ul {
display:block; 
position:absolute; 
top:30px; 
left:0; 
width:74px;
}
/* style the background and foreground color of the submenu links下拉菜单背景色*/
.menu ul li:hover ul li a {
display:block; 
background:#C41C1B; 
color:#ffffff;
border:solid 1px #ffffff;
font-weight:normal;
font-size:12px;
height:22px;
padding-top:0px;
width:74px;
}
/* style the background and forground colors of the links on hover */
.menu ul li:hover ul li a:hover {
background:#ff0000; 
color:#000;
}