#allbooks {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    
}
.jumbotron{
    background-image: url('Books-Store-Logo.jpg');
    background-repeat: no-repeat;
    background-size: contain;
    
    
}
#filterbox{
    display:flex;
    justify-content: flex-end;
    align-items: flex-end;
}

img{
    width: 100%;
}

.flip-container {
	perspective: 1000px;
    margin-bottom: 3%;
    
}
	/* flip the pane when hovered */
	.flip-container:hover .flipper, .flip-container.hover .flipper {
		transform: rotateY(180deg);
	}

.flip-container, .front, .back {
	width: 320px;
	height: 480px;
}

/* flip speed goes here */
.flipper {
	transition: 0.6s;
	transform-style: preserve-3d;

	position: relative;
}
.btn-danger{
    backface-visibility: hidden;
}

/* hide back of pane during swap */
.front, .back {
	backface-visibility: hidden;

	position: absolute;
	top: 0;
	left: 0;
}

/* front pane, placed above back */
.front {
	z-index: 2;
	/* for firefox 31 */
	transform: rotateY(0deg);
    
}

/* back, initially hidden pane */
.back {
	transform: rotateY(180deg);
    
}
.details{
    visibility: hidden;
}