15*15cm piece of colored paper, draw a heart shape.
Open is a heart of envelope origami, simple few steps to do, manual DIY origami illustrated tutorial Cut out the drawn heart shape.
Open is a heart of envelope origami, simple few steps to do, manual DIY origami illustrated tutorial The bottom of the heart folds up a triangle.
Open is a heart of envelope origami, simple few steps to do, manual DIY origami illustrated tutorial Folded at the crease of the upper facing triangle.
Open is a heart of envelope origami, simple few steps to do, manual DIY origami illustrated tutorial The sides of the heart are folded inward.
Open is a heart of envelope origami, simple few steps to do, manual DIY origami illustrated tutorial Fold down on top.
Open is a heart of envelope origami, simple few steps to do, manual DIY origami illustrated tutorial Write it inside, and the heart-shaped envelope is ready.
Open is a heart of envelope origami, simple few steps to do, manual DIY origami illustrated tutorial 
