.layer{
   margin: 0 auto;
}
.buntop{
   position:relative;
   z-index: 1;
}
.veggies{
   opacity:0.999;
}
.cheese{
    filter:sepia(0);
}
.meat{
   mix-blend-mode:darken;
}
.lettuce{
   will-change:transform;
}
.bunbottom{
   display:block;
}