html, body, #container
{
    height: 100%;
    overflow:hidden;
}

#main
{
    height: calc(100% - 6em);
    width: 100%;
}

.navbar
{
    display:contents;
    visibility:collapse;
    width:0px;
    float: left;
}

.navbar ul
{
    display:none;
}

.navbar-toggler
{
    display: inline;
    visibility:visible;
    position: fixed;
    top: 10px;
    left: 10px;
}

.navbar-toggler-icon
{
    width: 1.3em;
    height: 1em;
}

.navbar-overlay
{
    float: none!important;
    position: fixed;
    z-index: 1;
    display:initial;
    visibility:visible;
}

.navbar-overlay ul
{
    display:initial;
}

@media screen and (min-width: 992px)
{
    .navbar
    {
        display:initial;
        visibility:visible;
    }

    .navbar-toggler
    {
        display:none;
        visibility:collapse;
    }

    .navbar ul
    {
        display:initial;
    }

    .navbar-overlay
    {
        float: left!important;
        position: relative;
        
    }
}