.img_qr{
	width: 70px;
    height: 70px;
    display: inline-block;
    background-size: contain;
}

.img_qr.blr{
	opacity: 0;
}
.trw{transition:.2s ease-in-out}
.trw:hover{
	background: #d8d8d8;
	cursor: pointer;
}

.trw:hover .img_qr.blr{
	opacity: 1;
}
tbody .form-check-input{border:1px solid silver;pointer-events:none}