.blur_avatars_all{opacity:0.4;filter:alpha(opacity=40);-webkit-filter:grayscale(100%);-moz-filter:grayscale(100%);-o-filter:grayscale(100%);-ms-filter:grayscale(100%);filter:grayscale(100%)}@media screen and (max-width:50em){.blur_avatars{opacity:0.4;filter:alpha(opacity=40);-webkit-filter:grayscale(100%);-moz-filter:grayscale(100%);-o-filter:grayscale(100%);-ms-filter:grayscale(100%);filter:grayscale(100%)}}