#navbar {
    position: sticky;
    top: 0;
    overflow: hidden;
    background-color: #333;
}
  
#navbar a {
    float: left;
    display: block;
    color: #f2f2f2;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    font-size: 17px;
}
  
#navbar a:hover {
    background-color: #ddd;
    color: black;
}
  
#navbar a.active {
    background-color: #04AA6D;
    color: white;
}

/* Create a right-aligned (split) link inside the navigation bar */
#navbar a.split {
    float: right;
    background-color: #0454aa;
    color: white;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background-color: #000;
    color: #fff;
}

#sidebar {
    width: 250px;
    background-color: #1a1a1a;
    position: fixed;
    height: 100%;
    overflow-y: auto;
    padding: 20px;
    padding-bottom: 50px;
}

#sidebar h2 {
    font-size: 18px;
    margin-bottom: 10px;
}

#sidebar ul {
    list-style-type: none;
    padding: 0;
}

#sidebar ul li {
    margin-bottom: 10px;
}

#sidebar ul li a {
    color: white;
    font-size: 16px;
    text-decoration: none;
    cursor: pointer;
    display: block;
    padding: 5px 10px;
    border-radius: 4px;
}

h3 {
    color: yellow;
    font-size: 20px;
    text-decoration: none;
    cursor: pointer;
    display: block;
    padding: 5px 10px;
    border-radius: 4px;
}

h4 {
    color:  lime;
    font-size: 16px;
    text-decoration: none;
    cursor: pointer;
    display: block;
    padding: 5px 10px;
    border-radius: 4px;
}

#sidebar ul li a:hover {
    background-color: #333;
}

#sidebar h3:hover {
    background-color: #333;
}

#sidebar h4:hover {
    background-color: #333;
}

#content {
    margin-left: 250px;
    padding: 20px;
    height: 100vh;
    overflow: auto;
}

iframe {
    width: 100%;
    height: 100%;
    border: none;
    background-color: #fff;
}

.submenu, .sub-submenu {
    margin-left: 15px;
}

.submenu li a, .sub-submenu li a {
    font-size: 14px;
}

.footer {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    background-color: #333;
    color: white;
    font-size: 10px;
    text-align: center;
}