CSS横向菜单

/*菜单样式*/
#html_menu li
{
    width : 106px;
    height: 39px;
    float: left;
    line-height: 39px;
    text-align:center;
    list-style-type: none;
    font-size: small;
    font-weight: bold;
}
#html_menu a
{
    color: #FFFFFF;
    display :block;
    width:100%;
    height:100%;
}
#html_menu a:hover
{
    background-image: url('../Images/menu_2.png');
    background-repeat: no-repeat;
    cursor: pointer;
    color: #000000;
    text-decoration: none;
}