.header {background-image: url("https://singularityhub.com/wp-content/uploads/2018/08/circuit-board-electronic-computer-hardware-technology_shutterstock_515152267.jpg"); padding: 20px;color:white; text-align:center;}
.column {float: left;width: 30%;padding: 15px;}
.row:after {content: "";display: table;clear: both;}
/* Dropdown Button */
.dropbtn {
  background-color: #3498DB;
  color: white;
  padding: 16px;
  font-size: 16px;
  border: none;
  cursor: pointer;
  width: 24%;
  border-radius: 10px;
  position: sticky;
}

/* Dropdown button on hover & focus */
.dropbtn:hover, .dropbtn:focus {
  background-color: #ddd;
  color: black;
}

/* 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: sticky;
  top: 70px;
  background-color: #3f98d4;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
  width: 24%;
  border-radius: 10px;
  Opacity:90%;
}

.dropdown-content h1 {
  font-size: 20px;
  padding: 0px 20px;
  
}

#myDropdown1{
  position: sticky;
  top: 70px;
  left: 24%;
}

#myDropdown2{
  position: sticky;
  top: 70px;
  left: 48%;
}
/* Links inside the dropdown */
.dropdown-content a {
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
}

#myDropdown2 a {
  display: inline-block;  
}

.inline {
  display: inline-block;  
}

.topnav {position:sticky; top:10px;background-color:#3f98d4; overflow: hidden; justify-content:space-between;border-radius: 10px; opacity:90%}


/* Change color of dropdown links on hover */
.dropdown-content a:hover {background-color: #ddd;
border-radius: 10px;
}
/* Show the dropdown menu (use JS to add this class to the .dropdown-content container when the user clicks on the dropdown button) */
.show {display:block;}
body {background-color:lightblue;}
h2 {color:red;}
.footer {position: fixed; left: 0px; bottom: 10px; width: 100%; background-color: #3f98d4; color: white; text-align: center; border-radius: 10px; Opacity:90%;}
.br {height: 10px;}
.show {display:block;}