@media screen and (max-width: 500px) {
	/*if page information is empty*/
	section.empty_page {
		height: 600px;
		width: 100%;
		display: table;
		padding: 200px 200px;
		box-sizing: border-box;
	}
	section.empty_page p {
		height: 100%;
		width: 100%;
		display: block;
		margin: 0 auto;
		font-weight: bold;
		font-size: 30px;
		font-family: 'Open Sans', sans-serif;
		text-align: center;
	}
	/*for academics sub pages*/
	section.sub_page {
		width: 100%;
		overflow: auto;
		padding: 40px 0;
		box-sizing: border-box;
	}
	section.sub_page .wrap {
		margin: 0 auto;
		width: 100%;
		padding: 0 2%;
		box-sizing: border-box;
		margin: 0 auto;
		overflow: auto;
		max-width: 1200px;
	}
	section.sub_page .wrap .side {
		width: 80%;
		margin: 0 auto;
		font-family: 'Open Sans', sans-serif;
	}
	section.sub_page .wrap .side ul {
		margin: 0 0 20px 0;
		padding: 0;
	}
	section.sub_page .wrap .side ul li {
		list-style-type: none;
	}
	section.sub_page .wrap .side ul li.special_hd a {
		padding: 15px 10px;
		background-color: #ffae00;
		border: solid #757575;
		border-width: 0 1px 1px 1px;
		color: #000000;
		font-weight: bold;
		text-align: center;
	}
	section.sub_page .wrap .side ul li.special_hd a:first-of-type {
		border-width: 1px 1px 0 1px;
	}
	section.sub_page .wrap .side ul li.hd a {
		background-color: #730c27;
		text-align: center;
		font-weight: bold;
		font-size: 15px;
		padding: 8px 10px;
	}
	section.sub_page .wrap .side ul li a {
		text-decoration: none;
		font-size: 14px;
		color: white;
		padding: 6px 10px;
		display: block;
		border: solid #757575;
		border-width: 0 1px 1px 1px;
		background-color: gray;
	}
	section.sub_page .wrap .side ul li:last-of-type a {
		padding-bottom: 15px;
	}
	section.sub_page .wrap .info {
		width: 100%;
		margin: 0 auto;
		font-family: 'Open Sans', sans-serif;
	}
	section.sub_page .wrap .info h1 {
		font-size: 30px;
		margin-top: 0;
	}
	=section.sub_page .wrap .info .advert {}
	section.sub_page .wrap .info .advert .item {
		width: 48%;
		float: left;
	}
	section.sub_page .wrap .info .advert .item:nth-of-type(1) {
		margin-right: 4%;
	}
	section.sub_page .wrap .info .advert .image {
		background-repeat: no-repeat;
		background-position: center;
		background-size: cover;
		width: 100%;
		height: 200px;
		border: 10px white solid;
		box-sizing: border-box;
	}
	section.sub_page .wrap .info .advert a {
		text-decoration: none;
		font-weight: bold;
		color: #730c27;
		margin-top: 20px;
		display: block;
	}
	section.sub_page .wrap .info .advert p {}
	/*right side*/
	section.sub_page .wrap #rt_side {
		width: 80%;
		max-width: 500px;
		margin: 0 auto;
	}
	section.sub_page .wrap #rt_side ul {
		border: solid #757575;
		border-width: 1px 0 0 0;
	}
	section.sub_page .wrap #rt_side li.rt_hd a {
		background-color: #ffae00;
	}
	section.sub_page .wrap #rt_side li.image {
		background-image: url(images/courses_asti_about_bg.jpg);
		background-repeat: no-repeat;
		background-position: center;
		background-size: cover;
		height: 250px;
		border: solid #757575;
		border-width: 0 1px 0 1px;
	}
	section.sub_page .wrap #rt_side li a {
		font-size: 14px;
		color: black;
		background-color: white;
		text-align: center;
	}
	section.sub_page .wrap #rt_side li a.no_click {
		pointer-events: none;
	}
}
@media screen and (min-width: 501px) and (max-width: 990px) {
	/*if page information is empty*/
	section.empty_page {
		height: 600px;
		width: 100%;
		display: table;
		padding: 200px 200px;
		box-sizing: border-box;
	}
	section.empty_page p {
		height: 100%;
		width: 100%;
		display: block;
		margin: 0 auto;
		font-weight: bold;
		font-size: 30px;
		font-family: 'Open Sans', sans-serif;
		text-align: center;
	}
	/*for academics sub pages*/
	section.sub_page {
		width: 100%;
		overflow: auto;
		padding: 40px 0;
		box-sizing: border-box;
	}
	section.sub_page .wrap {
		margin: 0 auto;
		width: 100%;
		padding: 0 2%;
		box-sizing: border-box;
		margin: 0 auto;
		overflow: auto;
		max-width: 1200px;
	}
	section.sub_page .wrap .side {
		width: 80%;
		margin: 0 auto;
		font-family: 'Open Sans', sans-serif;
	}
	section.sub_page .wrap .side ul {
		margin: 0 0 20px 0;
		padding: 0;
	}
	section.sub_page .wrap .side ul li {
		list-style-type: none;
	}
	section.sub_page .wrap .side ul li.special_hd a {
		padding: 15px 10px;
		background-color: #ffae00;
		border: solid #757575;
		border-width: 0 1px 1px 1px;
		color: #000000;
		font-weight: bold;
		text-align: center;
	}
	section.sub_page .wrap .side ul li.special_hd a:first-of-type {
		border-width: 1px 1px 0 1px;
	}
	section.sub_page .wrap .side ul li.hd a {
		background-color: #730c27;
		text-align: center;
		font-weight: bold;
		font-size: 15px;
		padding: 8px 10px;
	}
	section.sub_page .wrap .side ul li a {
		text-decoration: none;
		font-size: 14px;
		color: white;
		padding: 6px 10px;
		display: block;
		border: solid #757575;
		border-width: 0 1px 1px 1px;
		background-color: gray;
	}
	section.sub_page .wrap .side ul li:last-of-type a {
		padding-bottom: 15px;
	}
	section.sub_page .wrap .info {
		width: 80%;
		margin: 0 auto;
		font-family: 'Open Sans', sans-serif;
	}
	section.sub_page .wrap .info h1 {
		font-size: 30px;
		margin-top: 0;
	}
	=section.sub_page .wrap .info .advert {}
	section.sub_page .wrap .info .advert .item {
		width: 48%;
		float: left;
	}
	section.sub_page .wrap .info .advert .item:nth-of-type(1) {
		margin-right: 4%;
	}
	section.sub_page .wrap .info .advert .image {
		background-repeat: no-repeat;
		background-position: center;
		background-size: cover;
		width: 100%;
		height: 200px;
		border: 10px white solid;
		box-sizing: border-box;
	}
	section.sub_page .wrap .info .advert a {
		text-decoration: none;
		font-weight: bold;
		color: #730c27;
		margin-top: 20px;
		display: block;
	}
	section.sub_page .wrap .info .advert p {}
	/*right side*/
	section.sub_page .wrap #rt_side {
		width: 80%;
		max-width: 500px;
		margin: 0 auto;
	}
	section.sub_page .wrap #rt_side ul {
		border: solid #757575;
		border-width: 1px 0 0 0;
	}
	section.sub_page .wrap #rt_side li.rt_hd a {
		background-color: #ffae00;
	}
	section.sub_page .wrap #rt_side li.image {
		background-image: url(images/courses_asti_about_bg.jpg);
		background-repeat: no-repeat;
		background-position: center;
		background-size: cover;
		height: 250px;
		border: solid #757575;
		border-width: 0 1px 0 1px;
	}
	section.sub_page .wrap #rt_side li a {
		font-size: 14px;
		color: black;
		background-color: white;
		text-align: center;
	}
	section.sub_page .wrap #rt_side li a.no_click {
		pointer-events: none;
	}
}
@media screen and (min-width: 991px) {
	/*if page information is empty*/
	section.empty_page {
		height: 600px;
		width: 100%;
		display: table;
		padding: 200px 200px;
		box-sizing: border-box;
	}
	section.empty_page p {
		height: 100%;
		width: 100%;
		display: block;
		margin: 0 auto;
		font-weight: bold;
		font-size: 30px;
		font-family: 'Open Sans', sans-serif;
		text-align: center;
	}
	/*for academics sub pages*/
	section.sub_page {
		width: 100%;
		max-width: 1200px;
		margin: 0 auto;
		overflow: auto;
		padding: 40px 2%;
		box-sizing: border-box;
	}
	section.sub_page .wrap {
		margin: 0 auto;
		width: 100%;
		overflow: auto;
		max-width: 1200px;
	}
	section.sub_page .wrap .side {
		width: 25%;
		float: left;
		font-family: 'Open Sans', sans-serif;
	}
	section.sub_page .wrap .side ul {
		margin: 0 0 20px 0;
		padding: 0;
	}
	section.sub_page .wrap .side ul li {
		list-style-type: none;
	}
	section.sub_page .wrap .side ul li.special_hd a {
		padding: 15px 10px;
		background-color: #ffae00;
		border: solid #757575;
		border-width: 0 1px 1px 1px;
		color: #000000;
		font-weight: bold;
		text-align: center;
	}
	section.sub_page .wrap .side ul li.special_hd a:first-of-type {
		border-width: 1px 1px 0 1px;
	}
	section.sub_page .wrap .side ul li.hd a {
		background-color: #730c27;
		text-align: center;
		font-weight: bold;
		font-size: 15px;
		padding: 8px 10px;
	}
	section.sub_page .wrap .side ul li a {
		text-decoration: none;
		font-size: 14px;
		color: white;
		padding: 6px 10px;
		display: block;
		border: solid #757575;
		border-width: 0 1px 1px 1px;
		background-color: gray;
	}
	section.sub_page .wrap .side ul li:last-of-type a {
		padding-bottom: 15px;
	}
	section.sub_page .wrap .info {
		width: 60%;
		padding: 0 4%;
		box-sizing: border-box;
		float: left;
		font-family: 'Open Sans', sans-serif;
	}
	section.sub_page .wrap .info h1 {
		font-size: 30px;
		margin-top: 0;
	}
	section.sub_page .wrap .info .advert {}
	section.sub_page .wrap .info .advert .item {
		width: 48%;
		float: left;
	}
	section.sub_page .wrap .info .advert .item:nth-of-type(1) {
		margin-right: 4%;
	}
	section.sub_page .wrap .info .advert .image {
		background-repeat: no-repeat;
		background-position: center;
		background-size: cover;
		width: 100%;
		height: 200px;
		border: 10px white solid;
		box-sizing: border-box;
	}
	section.sub_page .wrap .info .advert a {
		text-decoration: none;
		font-weight: bold;
		color: #730c27;
		margin-top: 20px;
		display: block;
	}
	section.sub_page .wrap .info .advert p {}
	/*right side*/
	section.sub_page .wrap #rt_side {
		width: 15%;
		margin: 0px 0 0 0;
		float: right;
	}
	section.sub_page .wrap #rt_side ul {
		border: solid #757575;
		border-width: 1px 0 0 0;
	}
	section.sub_page .wrap #rt_side li.rt_hd a {
		background-color: #ffae00;
	}
	section.sub_page .wrap #rt_side li.image {
		background-image: url(images/courses_asti_about_bg.jpg);
		background-repeat: no-repeat;
		background-position: center;
		background-size: cover;
		height: 120px;
		border: solid #757575;
		border-width: 0 1px 0 1px;
	}
	section.sub_page .wrap #rt_side li a {
		font-size: 14px;
		color: black;
		background-color: white;
		text-align: center;
	}
	section.sub_page .wrap #rt_side li a.no_click {
		pointer-events: none;
	}
}