6 ms·

that's not a visual guide, and the thumbs along with above and below mentioned are confusing.

• smeej 3y ago
  Your thumbs run vertically along the sides of the card, parallel to each other. You use them to cover anything to the sides of the month header(/footer) you're looking at. I think it's that "not under or above" description from the link that's confusing. Find the header/footer for the right month. Use your thumbs to cover everything to the right or left.
  • billbrown 3y ago
    Doesn't a thumb then obscure the label of the month you're identifying?
    • smeej 3y ago
      Not if you put them to the right and left of the month's label. That's the whole point. The thumbs cover everything to the right and left of the label.