#stacks_in_12 .video-thumb-wrapper{width:100%;text-align:center;position:relative}#stacks_in_12 .video-thumb-wrapper img.vimeo-thumb{width:100%;max-width:640px;display:block;margin:0 auto;}#stacks_in_12 .video-thumb-wrapper a{margin:0 auto;width:100%;max-width:640px;display:block;position:relative}#stacks_in_12 .video-thumb-wrapper .play-button{background:url(../../rw_common/plugins/stacks/video-thumb-images/play-button.png) no-repeat center center;margin:0 auto;position:absolute;display:block;top:0;width:100%;height:100%;opacity:0.7;transition:opacity 200ms ease-in-out 0}#stacks_in_12 .video-thumb-wrapper .play-button:hover{opacity:1}@media screen and (max-width:600px){#stacks_in_12 .video-thumb-wrapper .play-button{background-image:url(../../rw_common/plugins/stacks/video-thumb-images/play-button-mobile.png)}}