post-body img {border: 1px solid #ccc;-webkit-transform: scale(0.8);-moz-transform: scale(0.8);-o-transform: scale(0.8);-webkit-transition-duration: 0.2s;-moz-transition-duration: 0.2s;-o-transition-duration: 0.2s;}<br />.post-body img:hover {-webkit-transform: scale(1.0);-moz-transform: scale(1.0);-o-transform: scale(1.0);opacity: 1.0;-moz-box-shadow: 0 4px 16px rgba(0,0,0,0.2);-ms-box-shadow: 0 4px 16px rgba(0,0,0,0.2);-webkit-box-shadow: 0 4px 16px rgba(0,0,0,0.2);box-shadow: 0 4px 16px rgba(0,0,0,0.2);border-image: initial;}<br />