.sl-block{cursor:pointer}.reveal *{word-break:break-word}.sl-block-placeholder{background-color:#222;background-position:50% 50%;background-repeat:no-repeat;background-size:contain;border-radius:5px;height:100%;left:0;opacity:.9;position:absolute;top:0;width:100%}.sl-block-placeholder[data-block-type=video]{background-image:url(../images/block-placeholder-video.png)}.sl-block-placeholder[data-block-type=image]{background-image:url(../images/block-placeholder-image.svg)}.sl-block-placeholder[data-block-type=iframe]{background-image:url(../images/block-placeholder-iframe.png)}