.ql-spacer {
  position: relative;
  display: block;
  width: 100%;
}

.acf-block-preview .ql-spacer {
  border: 2px dotted #ccc;
  min-height: 40px;
}

.bg-dark .acf-block-preview .ql-spacer {
  border-color: #eaeaea;
}

.acf-block-preview .ql-spacer::after {
  content: "Spacer";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: #eaeaea;
  color: #646464;
  font-size: 14px;
  padding: 4px 8px;
}

.wp-block-acf-spacer.is-selected .acf-block-preview .ql-spacer {
  background-color: #eaeaea;
}
.wp-block-acf-spacer.is-selected .acf-block-preview .ql-spacer::after {
  display: none;
}