#kartinka::before{
  content: '';

  width:100%;
  height: 100%;
  
  position:absolute;
  top:0;
  left:-20%;

    border-top: 100vh solid rgba(255,0,50,0.3);
    border-right: 30vw solid transparent;
	   
}


#opisanie{
display:none;
}

#kartinka{
  position: relative;
	display:block;
}