body {
  background-image: url('background.png');
}

div.content {
    background-color: bisque;
    opacity: 0.8;
    width: 500px;
    padding: 20px;
    padding-top: -20px;
    margin: 10px;
    border-radius: 20px;
    border: 2px solid #73AD21;

}

div.hosts {
    background-color: aquamarine;
    opacity: 0.5;
    border-radius: 20px;
    padding: 10px;
    border: 2px solid #000000;

}