section.seo_block {
	padding-bottom: 20px;
}

section.seo_block .content_seo {
	margin-top: 30px;
	max-height: 200px;
	overflow: hidden;
	position: relative;
	-webkit-transition: all 0.3s ease-in-out;
	-moz-transition: all 0.3s ease-in-out;
	-ms-transition: all 0.3s ease-in-out;
	-o-transition: all 0.3s ease-in-out;
	transition: all 0.3s ease-in-out;
}
section.seo_block .content_seo:before {
	content: '';
	position: absolute;
	width: 100%;
	height: 30px;
	bottom: 0;
	opacity: 1;
	-webkit-transition: all 0.3s ease-in-out;
	-moz-transition: all 0.3s ease-in-out;
	-ms-transition: all 0.3s ease-in-out;
	-o-transition: all 0.3s ease-in-out;
	transition: all 0.3s ease-in-out;
	background: linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, #FFFFFF 84%);
	z-index: 1;
}
section.seo_block.open .content_seo:before {
	opacity: 0;
}
section.seo_block.open .btn-read-more {
	opacity: 0 !important;
	font-size: 0px;
}