#iframeContent {
    background:#ffffff;
	border:0px solid;
}
#iframeContent :is(h1, h2, h3, h4, h5, h6) {
    margin-top: 25px;
    margin-bottom: 25px;
    font-weight: bold;
    line-height: 1.1 !important;
	padding: 0 !important;
	display: block;
}