/** 
Corner item??
Create svg mask, or svg graphic, but shading is difficult there 
What should I do with the shadow? 
 - I have the solution!
 **/
.corner{
  display:flex;
  flex-wrap:wrap;
}

.corner3x3{
  /*overflow:hidden;*/
  /*background-image: url(/assets/elements/pieces/corner_3x3.svg);*/
}

.corner3x3_0{
background-image:url(//lego.partisanboost.com/assets/elements/pieces/corner3x3_1.svg);
}
.corner3x3{
background-image:url(//lego.partisanboost.com/assets/elements/pieces/corner3x3_2.svg);
}