2. To work, you will need a rectangular red sheet of paper (A4 size) and a glue stick.
3. First, fold the sheet lengthwise.
4. Then we unfold it and bend the upper corner on the left side.
5. Bend the right side in the form of a rectangle to the left.
6. Unfold the sheet and at the same time turn it over to the other side.
7. Bend the left side to the right in the direction of the previously made fold.
8. Unfold the sheet again and fold the left side to the fold we just made.
9. Let's turn the blank of the future envelope over to the other side.
10 On its left side we bend the corners (top and bottom).
11. This is what our workpiece looks like from the other side.
12. We bend the left corner to the previously made transverse fold.
13. Turn it over to the other side and, for convenience, turn it slightly towards you (90 degrees).
14. We bend the corners at the bottom.
15.Now we straighten them, forming triangular pockets.
16. On the sides it is necessary to additionally bend the right and left corners.
17. At the bottom, bend the corners a little.
18. We turn the envelope blank over to the other side and see that our heart is ready.
19. All that remains is to form the envelope itself. To do this, turn the sheet over again to the other side and bend its sides.
20. We bend the lower part upward, forming the envelope itself.
21. Unfold and apply glue to the sides.
22. Bend it again and let the glue set.
23. Straighten and admire our envelope with a heart.
