head {
  color: #176E6C;  
  font-family: 'Arial';
  text-align: center;
}
  
body {
  color: #000000;  
  font-family: 'Arial';
  background-image: url("marble2.jpg"); 
  text-align: left;
}
  
a {
  color: #003021;
}

img {
    height:100%;
    object-fit: cover;
}

* {
    padding: 0px;
    margin: 0px;
}

.clickable {
  position: fixed;
  background-color: rgba(255, 0, 0, 0);
  width:100px;
  height:100px;
}