header {
  background: tomato;
  height: 30px;
  padding: 20px;
}
main {
  padding: 20px;
}
footer {
  padding: 10px;
  background: #333;
  color: #fff;
  font-size: 12px;
}



body {
    
    font-family: arial;
    width:980px; 
    background-color:Gainsboro
    }


A:link {
	font-family: arial;
	font-size: 12pt;
	}



.header-img {
  width: 100%;
  height: 200px;
  object-fit: contain;
  background: url('3mx3_head.png');
  background-size: cover;
}


 /* Container holding the image and the text */
.container {
  position: relative;
  text-align: center;
  color: white;
}

/* Bottom left text */
.bottom-left {
  position: absolute;
  bottom: 8px;
  left: 16px;
}

/* Top left text */
.top-left {
  position: absolute;
  top: 8px;
  left: 16px;
}

/* Top right text */
.top-right {
  position: absolute;
  top: 8px;
  right: 16px;
}

/* Bottom right text */
.bottom-right {
  position: absolute;
  bottom: 8px;
  right: 16px;
}

/* Centered text */
.centered {
  position: absolute;
  top: 50%;
  left: 50%;
  font-size:  32px
  transform: translate(-50%, -50%);
}