body {
		margin-top: 50px;
		margin-bottom: 50px;
		margin-right: auto;
		margin-left: auto;
		max-width: 800px;
		display: block;
		font-family: arial;
	}

	img {
		margin:10px;
	}

.thumbnail {
  position: relative;
  width: 200px;
  height: 200px;
  overflow: hidden;
  display: inline-block;

}
.thumbnail img {
  position: absolute;
  left: 50%;
  top: 50%;
  height: 100%;
  width: auto;
  -webkit-transform: translate(-50%,-50%);
      -ms-transform: translate(-50%,-50%);
          transform: translate(-50%,-50%);
}