.pict_col{
	width:50%; 
	text-align:center; 
	vertical-align:middle;
}
@media (max-width: 450px) {	
	.pict_col img{
		height:auto!important;
	}
	
	
	.table-qr-code .btn {
		        white-space: normal;
		padding: 6px;
	}
}