.mace-regenerate-thumbs.mace-in-progress .mace-start { display: none; }

.mace-regenerate-thumbs .mace-processing-header,
.mace-regenerate-thumbs .mace-processed-header,
.mace-regenerate-thumbs .mace-stats,
.mace-regenerate-thumbs .mace-processed-files { display: none; }

.mace-regenerate-thumbs .mace-processed-files .mace-details { display: none; }
.mace-regenerate-thumbs .mace-processed-files li.mace-expanded .mace-details { display: block; }

.mace-regenerate-thumbs.mace-in-progress .mace-processed-files,
.mace-regenerate-thumbs.mace-finished .mace-processed-files { display: block; }

.mace-regenerate-thumbs.mace-in-progress .mace-processing-header { display: block; }
.mace-regenerate-thumbs.mace-finished .mace-processed-header { display: block; }

.mace-regenerate-thumbs.mace-in-progress .mace-stats { display: block; }
.mace-regenerate-thumbs.mace-finished .mace-stats { display: block; }