.hidden   {display: none;}
.centered {text-align: center;}

.help_title {font-weight: bold;}

.help_ver, .span_ver,
.span_ver_date {font-style: italic;}

.tbl_wide {
    width:  100%;
    border: solid 1px #ccc;    
}
.tbl_wide .tbl_header {
    font-weight:      bold;
    text-align:       center;
    background-color: #ccc;
}
.tbl_wide td {
    padding: 5px;
    border: solid 1px #ccc;
}

.mnu_selected {
    background-color: #000;
    color:            #fff;
}

.scrollable {overflow: auto;}

html,
body {
    height: 100%;
    margin: 0;
}

hr {
    margin:  5px 0;
    padding: 0;
    border:  0;
    height:  1px;
    background-image: -webkit-linear-gradient(left,rgba(0,0,0,0),rgba(0,0,0,0.25),rgba(0,0,0,0));
    background-image: -moz-linear-gradient(left,rgba(0,0,0,0),rgba(0,0,0,0.25),rgba(0,0,0,0));
    background-image: -ms-linear-gradient(left,rgba(0,0,0,0),rgba(0,0,0,0.25),rgba(0,0,0,0));
    background-image: -o-linear-gradient(left,rgba(0,0,0,0),rgba(0,0,0,0.25),rgba(0,0,0,0));
    background:       linear-gradient(left,rgba(0,0,0,0),rgba(0,0,0,0.25),rgba(0,0,0, 0));
}

nav {
    width:       200px;
    box-shadow:  5px 5px 5px #ccc;
    position:    fixed;
    padding:     2px;
    margin-left: 10px;
    border:      solid 1px #ccc;
}
nav ul {
    padding:    0;
    margin:     2px;
    list-style: none;
    transition: all 0.5s ease-out 0.1s;
}
nav ul li {
    cursor: pointer;
}
nav ul li ul {
    padding: 0 0 0 2px;
}
nav ul li div {
    padding: 2px 2px 2px 4px;
}
nav ul li div:hover {
    background-color: #ddd;
    color:            #000;
}

article {
    margin:     2px 2px 2px 225px;
    transition: all 0.5s ease-out 0.1s;
}

a, a:visited, a:hover {
    color:           #555;
    text-decoration: none;
}
a:hover {text-decoration: underline;}

#div_license {
    height: 150px;
}