The invention relates to a security element for a security document, comprising a structure layer and diffracting first and second relief structures, the relief structures being arranged running parallel to the plane of the structure layer in various levels of the security element, the first relief structure bounding a partial first reflective layer and the second relief structure bounding a partial second reflective layer. When the first reflective layer is facing an observer a second piece of information generated by the second relief structure is at least partly obscured and when the second reflecting layer is facing an observer a piece of information generated by the first relief structure is at least partly obscured. The invention further relates to a method for producing said security elements and security documents produced therewith. The average distance between the first reflecting layer and the second reflecting layer is less than 15um.