.zoom {
  padding: 50px;
  background-color: green;
  transition: transform .2s; /* Animation */
  width: 200px;
  height: 200px;
  margin: 0 auto;
}

.zoom:hover {
  transform: scale(1.5); /* (150% zoom - Note: if the zoom is too large, it will go outside of the viewport) */
}

For example:
.example {
    color: red;
}

For brushing up on your CSS knowledge, check out http://www.w3schools.com/css/css_syntax.asp

End of comment */ 


.image-wrap {
  width: 100%;
  height: 50vw;
  margin: 0 auto;
  overflow: hidden;
  position: relative;
}

.image-wrap img {
  width: 100%;
  animation: move 40s ease;
  /* Add infinite to loop. */
  
  -ms-animation: move 40s ease;
  -webkit-animation: move 40s ease;
  -0-animation: move 40s ease;
  -moz-animation: move 40s ease;
  position: absolute;
}

@-webkit-keyframes move {
  0% {
    -webkit-transform-origin: bottom left;
    -moz-transform-origin: bottom left;
    -ms-transform-origin: bottom left;
    -o-transform-origin: bottom left;
    transform-origin: bottom left;
    transform: scale(1.0);
    -ms-transform: scale(1.0);
    /* IE 9 */
    
    -webkit-transform: scale(1.0);
    /* Safari and Chrome */
    
    -o-transform: scale(1.0);
    /* Opera */
    
    -moz-transform: scale(1.0);
    /* Firefox */
  }
  100% {
    transform: scale(1.2);
    -ms-transform: scale(1.2);
    /* IE 9 */
    
    -webkit-transform: scale(1.2);
    /* Safari and Chrome */
    
    -o-transform: scale(1.2);
    /* Opera */
    
    -moz-transform: scale(1.2);
    /* Firefox */
  }
}