Setup
   1. Log in as admin in ezwebin
   2. Create some article and view it
   3. Click "CSS" button in toolbar

Test Add properties dialog
   1. Select "H1" from the "Elements" menu
   2. Select Box -> width in drop down
   3. Click "Add" button
   4. Write "50" in the width input field
   5. Do *not* click "Apply" button
   6. Select Font -> font-family in the drop down
   7. Click "Add" button
   8. Validate that the input field for width still says "50"
   9. Click "Save" button