body,h2,h3,h4,h5 {font-family: 'Roberto', sans-serif}
#ex1 {
  border: 2px solid black;
  padding: 0px;
  background: url(green.jpg);
  background-repeat: repeat;
  background-size: auto;
}
h1 {
  font-size: 52px; 
}
h1 {
  color: #006633; 
}

h1 {font-family: 'Great Vibes', cursive;"
font-size:72px;

}
body {font-size:18px;}
.w3-half img{margin-bottom:-6px;margin-top:16px;opacity:0.8;cursor:pointer}
.w3-half img:hover{opacity:1}

a:link, a:visited {
  background-color: #006633;
  color: white;
  padding: 12px 16px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
}

a:hover, a:active {
  background-color: #339966;
}

div2 {
  width: 100%;
height: 150px;
background-color: #006633;
  padding: 18px;
  margin: 0px;
}
#footer {
   position:fixed;
   left:0px;
   bottom:0px;
   height:30px;
   width:100%;
   background-color:#006633;
   color:#ffffff; 
padding: 16px;
}