[html] highlight the navigation menu for the current page

It seems to me that you need current code as this ".menu-current css", I am asking the same code that works like a charm, You could try something like this might still be some configuration

a:link, a:active {
    color: blue;
    text-decoration: none;
}

a:visited {
    color: darkblue;
    text-decoration: none;
}

a:hover {
    color: blue;
    text-decoration: underline;
}

div.menuv {
    float: left;
    width: 10em;
    padding: 1em;
    font-size: small;
}


div.menuv ul, div.menuv li, div.menuv .menuv-current li {
    margin: 0;
    padding: 0;
    list-style: none;
    margin-bottom: 5px;
    font-weight: normal;
}

div.menuv ul ul {
    padding-left: 12px;
}

div.menuv a:link, div.menuv a:visited, div.menuv a:active, div.menuv a:hover {
    display: block;
    text-decoration: none;
    padding: 2px 2px 2px 3px;
    border-bottom: 1px dotted #999999;
}

div.menuv a:hover, div.menuv .menuv-current li a:hover {
    padding: 2px 0px 2px 1px;
    border-left: 2px solid green;
    border-right: 2px solid green;
}

div.menuv .menuv-current {
    font-weight: bold;
}

div.menuv .menuv-current a:hover {
    padding: 2px 2px 2px 3px;
    border-left: none;
    border-right: none;
    border-bottom: 1px dotted #999999;
    color: darkblue;
}