.spacer {
    background: none;
}

.spacer span {
    display: none;
}

.dnnEditState .spacer {
    background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAECAYAAACp8Z5+AAAAIklEQVQYV2NkQAJXTl75zwjjgzg65jqMYAEYB8RmROaABAD73w91BYywhAAAAABJRU5ErkJggg==);
    position: relative;
}

.dnnEditState .spacer span {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    color: #565656;
    display: inline-block;
    text-shadow: 0 0 1px #000;
    font-weight: 700;
    font-size: 16px;
}