a:hover { background-color: transparent; }
.page-nav-bar, .bread { display: none; }
.page-nav-bar.vis, .bread.vis { display: block; }
.toggle_nav_control, .toggle_nav_control:hover
{
    padding: 1em;
    -moz-border-radius: 10px;
    -webkit-border-radius: 10px;
    border-radius: 10px;
    border: 2pt solid black;
}

button.toggle_nav_control
{
    color: black;
    text-decoration: none;
}
.toggle_nav_control
{
    border-color: black;
    background-color: palegreen;
}
.toggle_nav_control:hover
{
    cursor: pointer;
    border-color: red;
    background-color: yellow;
}