#choixindex{ position:relative;top:-30px; left:0px; float:left; width:1000px; margin-left:auto;  margin-right:auto;z-index:69; text-align:center;	}
#postit_index{width:408px; margin-left:auto;  margin-right:auto;}
#postit_web{ position:relative; left:0px; z-index:70; float:left; width:136px;margin-left:auto;  margin-right:auto;  }
#postit_print{position:relative;left:0px; z-index:71; float:left; width:136px; margin-left:auto;  margin-right:auto;}
#postit_dessin{position:relative;left:0px; z-index:72; float:left; width:136px;margin-left:auto;  margin-right:auto; }