div.nav_container
{
    width:100%;
    text-align:right;
    padding: 8px 0px 8px 0px;
    border-width: 1px 0px 0px 0px;
    border-color: #000000;
    border-style: solid;
    background-color: #DDDDDD;
    margin: 8px 0px 0px 0px;
}

div.nav_item_container
{
    padding: 1px;
    display: inline-table;
    cursor: pointer;
    background-color: #000000;  /*Border colour of the item container*/
    width: 150px;
}

a.nav_item_header
{
    text-align: right;
    color: #000000;
    line-height: 28px;
    padding: 0px 15px;
    display: inline-block;
    text-decoration: none;
    cursor: pointer;
    background: #FFFFFF;
    width: inherit;
}

a.nav_item_header:hover
{
    color: #FFFFFF;
    background: #000000;
}

a.nav_item_header.active
{
    color: #000000;
	background: #AAAAAA;
}

a.nav_item_header.active:hover
{
    color: #FFFFFF;
    background: #000000;
}

div.nav_item_container:not(:hover) > ul
{
    display:none;
}

div.nav_item_container > ul
{
    width:auto;
    background-color: #666666;
    z-index: 0;
    position: absolute;
    border: 0px;
    padding: 5px 5px 5px 5px;
    margin: 1px 0px 0px 0px;
    list-style-type: none;
    text-align:left;
    min-width: 250px;
}

/*Sub menu*/
div.nav_sub_header
{
    width: auto;
    display:flex;
}

div.nav_sub_header:not(:hover) > ul
{
    display:none;
}

div.nav_sub_header > ul
{
    width:auto;
    background-color: #888888;
    z-index: auto;
    position:absolute;
    border: 0px;
    padding: 5px 5px 5px 5px;
    margin: 0px;
    list-style-type: none;
    text-align:left;
    min-width: 250px;
}

a.nav_item
{
    display: block;
    text-decoration: none;
    color: #FFFFFF;
}

a.nav_item:hover
{
    background-color: #222222;
}

a.nav_sub_item
{
    display: block;
    text-decoration: none;
    color: #FFFFFF;
}

a.nav_sub_item:hover
{
    background-color: #222222;
}