wordpress amp plugin rtl style

wp-amp-plugin_rtl.css

@font-face {
	font-family: IranSans;
	font-style: normal;
	font-weight: 300;
	src: url('../assets/fonts/iransans/IRANSansWeb_Light.woff2') format('woff2'),  /* FF39+,Chrome36+, Opera24+*/
		 url('../assets/fonts/iransans/IRANSansWeb_Light.woff') format('woff'),  /* FF3.6+, IE9, Chrome6+, Saf5.1+*/
		 url('../assets/fonts/iransans/IRANSansWeb_Light.ttf') format('truetype');
}



html {
  background-color: #fff;
}

body {
	font-weight: 300;
	color: #212121;
	font-size: .875em;
	line-height: 2;
}


.comments_list ul li p,
.amp-wp-title,
.comment-body,
.comment-button-wrapper a,
.related_posts ol,
.amp-wp-meta, 
.amp-wp-header div,
.wp-caption-text, 
.amp-wp-tax-category, 
.amp-wp-tax-tag,
.amp-wp-comments-link,
.amp-wp-footer p,
.back-to-top,
body {
    font-family: IranSans, -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen-Sans", "Ubuntu", "Cantarell", "Helvetica Neue",sans-serif;
}






.amp-wp-header {
	margin-bottom: 1.5em;   
}

.amp-wp-header div {
	max-width: 768px;
	padding: .7em 1em 0;
}

.ampforwp-logo-area a {
	font-size: 0;
}





.amp-wp-article {
	font-weight: 300;
	margin-top: 0;
	max-width: 768px;
}

.amp-wp-article-featured-image {
	margin: 0 0 1em;
}



.amp-wp-article-header {
	display: block;
	margin: 0 1em 1em;
}

.amp-wp-meta {
	display: inline-block;
	margin-left: 2em;
}

/* menu */


.amp-wp-header .nav_container {
	top: 0;
	left: 0;
	right: auto;
	float: left;
	line-height: 1;
}

.toggle-text span:nth-child(2) {
	top: 7px;
}

.toggle-text span:nth-child(3) {
	top: 14px;
}



.toggle-navigationv2 ul ul li a {
	background: #efefef;
	border-bottom-color: #e0dede;
}

.toggle-navigationv2 ul li a {
	background: #ffffff;
}





.amp-wp-tax-category span {
	display: inline-block;
	margin-right: 0;
	margin-left: .5em;
}


.related_posts h3, .comments_list h3 {
	margin: 0 0 1em;
	font-size: 1.3em;
}

.comments_list ul li .comment-body {
	padding: 1.5em;
}

.comments_list ul li {
	margin-bottom: 1.5em;
	background: #fff;
	-moz-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.22);
	-webkit-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.22);
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.22);
}

.comments_list ul li:last-child {
	margin-bottom: 0;
}

.comment-author {
	float: right;
	margin-left: 1em;
}

.comment-metadata {
	float: left;
}

.comment-meta:after {
	content: "" !important;
	display: block !important;
	clear: both !important;
}

.comment-metadata a {
	color: #b1b1b1;
}

.comment-edit-link.comment-edit-link {
	color: initial;
}





.related_posts ol li {
	margin-bottom: 1.5em;
}

.related_posts ol li:last-child {
	margin-bottom: 0;
}

.related_posts ol li amp-img {
	float: right;
	margin-left: 15px;
	margin-right: 0;
	width: 75px;
}


.related_posts .related_link a {
	display: block;
	margin-bottom: 1em;
	font-size: 1em;
	color: #212121;
	line-height: 1.5;
}

.related_posts ol li p {
	font-size: 12px;
	color: #999;
	line-height: 1.5;
	margin: 0;
}


.amp-wp-footer {
	text-align: center;
}

.amp-wp-footer h2 {
	margin-bottom: 1em;
}


.copyright_txt.copyright_txt {
	margin-bottom: 1.5em;
}

.amp-wp-footer p {
	margin-right: 0;
}

.copyright_txt.copyright_txt {
	float: none;
}

.back-to-top {
	float: none;
}




@media (min-width: 480px) {

	.amp-wp-unknown-size img {
			object-fit: cover;
	}

}


@media (min-width: 480px) and (max-width: 768px) {

	.amp-wp-header {
			margin-bottom: 0;   
	}

}


@media (min-width: 768px) {

	.amp-wp-footer {
			text-align: inherit;
	}

	.copyright_txt.copyright_txt {
			margin-bottom: 0;
			float: left;
	}

	.back-to-top {
			float: right;
	}

}

@navidkasani yeah, this is correct. I added system fonts.