<img src="https://daks2k3a4ib2z.cloudfront.net/5772b3c08130511f7703bafb/57dffb10ee0df0d90eb761ab_trump-clinton.jpg" class="thumbnail-small" alt="">

.thumbnail-small {
 margin-bottom: 15px;
 padding: 0;
 width: 100%;
 height: 120px;
 overflow: auto;
 background-repeat: no-repeat;
 background-position: center center;
 background-attachment: fixed;
}