.tszBlock_quoteForm.isPreview {
	position: relative;
	overflow: hidden;
}
.tszBlock_quoteForm.isPreview::before {
	content: '';
	position: absolute;
	z-index: 2;
	top: 0;
	right: 0;
	bottom: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: transparent;
}
.tszBlock_quoteForm.isPreview iframe {
	position: relative;
	z-index: 1;
	min-height: 500px;
}