1. First take a square piece of paper;

2. Fold it up, down, left and right! Leave traces;

3. Take the trace as the reference line, fold all four corners inwards, and then fold both sides inwards in parallel;

4. According to the direction of the arrow, continue to fold in half;

5. unfold the folded one gently;

6. Then fold the upper corner into the box;

7. Then turn the box around and continue to make the other side. When it is finished, it will be fine.