.wrapper{		
		width: 100%;
	}			
	




/*********Brforeafter anime****************/

.img-frame{
    overflow: hidden;
    position: relative;
  　height: 0;}
.bfaimg{
    width: 100%;
    height: 0;
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
	animation: rotation 4s infinite;
	-webkit-animation: rotation 4s infinite;
    will-change: opacity, z-index;	/* ハードウェアアクセラレーションの強化 */
	backface-visibility: hidden;
	transform: translateZ(0);	
}

/*********高さ調整用************************/

.pd170{
	padding-top: 170%;
}

/*****************************************/

.img-frame .bfaimg-01 {
   animation-delay: 0;

}
.img-frame .bfaimg-02 {
   animation-delay: -2s;
}


@keyframes rotation {
   0% {
   opacity: 1;
   z-index: 10;
   }
	
   50% {
   opacity: 1;
   z-index: 10;   
   }
	
   50.001% {
   opacity: 0;
   z-index: 1;
   }
	   
   100% {
   opacity: 0;
   z-index: 1;   
   }
}