.blog .hentry a .attachment-post-thumbnail,
.archive .hentry a .attachment-post-thumbnail,
.search .hentry a .attachment-post-thumbnail {
	border-radius: 180px;
	filter: none;
	-webkit-filter: none;
	-webkit-filter: none; /* Older versions of webkit */
	-moz-filter: none;
	-o-filter: none;
	-ms-filter: none; /* IE 10 */
	filter: none; /* IE 9 */
        opacity: 1;
}

.blog .hentry a:hover img,
.archive .hentry a:hover img,
.search .hentry a:hover img {
        filter: grayscale(100%);
        -webkit-filter: grayscale(100%);
        -webkit-filter: grayscale(1);
        -moz-filter: grayscale(100%);
        -o-filter: grayscale(100%);
        -ms-filter: grayscale(100%);
        opacity: .8;
        -webkit-opacity: .8;
        -moz-opacity: .8;
}