.header {position: sticky;
    top: 0;
    height: 100px;
    padding: 3px;
    background: #000000;
    color: #f1f1f1;}

body    {background-color: black;
        text-align: center;
        font-family: 'Times New Roman', Times, serif;}

h2      {color: rgb(109, 128, 204);}

h3      {color: white;
        margin-bottom: 0;
        padding: 0;}

p       {color: white;
        margin-top: 0;}

a:link {color: rgb(81, 103, 168);}

a:visited {color: rgb(255, 179, 191);}

a:hover {color: red;}

a:active {color: red;}

.dropbtn {
    background-color: #191919;
    border-radius: 25px;
    width: 140px;
    color: white;
    padding: 5px;
    font-size: 14px;
    border: none;
    font-family: 'Times New Roman', Times, serif;
  }
  
  /* The container <div> - needed to position the dropdown content */
  .dropdown {
    position: relative;
    display: inline-block;
  }
  
  /* Dropdown Content (Hidden by Default) */
  .dropdown-content {
    
    display: none;
    position: absolute;
    background-color: black;
    color: #ffffff;
    left: 50%;
  transform: translateX(-50%);
    min-width: 150px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
    font-size: 14px;
  }
  
  /* Links inside the dropdown */
  .dropdown-content a {
    color: rgb(255, 255, 255);
    padding: 12px 16px;
    text-decoration: none;
    display: block;
  }
  
  /* Change color of dropdown links on hover */
  .dropdown-content a:hover {color:rgb(109, 128, 204);}
  
  /* Show the dropdown menu on hover */
  .dropdown:hover .dropdown-content {display: block;}
  
  .submenu {
    position: relative;
  }
  
  .submenu-content {
    display: none;
    position: absolute;
    top: 0;
    left: 100%;
    min-width: 100px;
    padding: 4px;
    background-color: #000000;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 2;
  }
  
  .submenu-content a {
    color: rgb(255, 255, 255);
    padding: 12px 16px;
    width: 190px;
    height: 10px;
    text-decoration: none;
    display: block;
  }
  
  .submenu-content a:hover {
    background-color: #585858;
  }
  
  .submenu:hover .submenu-content {
    display: block;
  }