ul.main_menu {
    list-style-type: none;
    margin: 0;
    text-align: right;
}
ul.main_menu > li {
    display: inline;
    padding: 0;
    margin: 0;
}
ul.main_menu a {
    text-decoration: none;
    padding-left: 5px;
    padding-right: 5px;
    margin: 0;
}
ul.main_menu a:hover {
    text-decoration: underline;
}
ul.main_menu > li > a {
    color:#FFFFFF;
}

ul.main_menu li.folder {
}
ul.main_menu li.folder div {
    display: inline;
    color:#FFFFFF;
    padding-left: 5px;
    padding-right: 5px;
    margin: 0;
    cursor: pointer;
}
ul.main_menu li.folder div:after {
    content: '▼';
    font-size: 70%;
}
ul.main_menu li.folder > ul {
    display: none;
    position: absolute;
    left: 0;
    margin: 0;
    padding: 0;
    list-style-type: none;
    width: 120px;
    text-align: left;
    font-size: 90%;
    color:#1E7A99;
    background-color: #FFFFFF;
    border: 1px solid #1E7A99;
}
ul.main_menu li.folder > ul > li {
    margin: 0;
    padding: 0;
}
ul.main_menu li.folder > ul > li > a {
    display: block;
    padding: 3px 5px 3px 5px;
}
ul.main_menu li.folder > ul > li > a:hover {
    background-color: #FFFF99;
}
ul.main_menu li.folder > ul > li > hr {
    height: 1px;
    border: none;
    color: #ccc;
    background-color: #ccc;
}