.spacer-block { clear: both; display: block; margin: 0; padding: 0; width: 100%; display: table; }
.spacer-block.edit-mode { 
  color: rgba(0, 0, 0, .25);
  font-size: .85em;
  /*background-color: rgba(0, 0, 0, .04);*/
  border: solid 1px rgba(0, 0, 0, .08);
}
.spacer-block .spacer-text { 
  display: table-cell;
  vertical-align: middle;
  text-align: center;
}