h2 {
	margin-top: 60px;
}

.article {
	text-align: justify;
}



.diy_article_descr2 {
	height: 400px;
	width: 800px;
	position: relative ;
	margin-top: 10px;
}

.diy_title2 {
	font-size: 24pt;
	color: #DDD;
	opacity: 1;
	width: 770px;
	height: auto;
	position: absolute;
	text-align: left;
	margin: 0;
	padding: 10px 15px;
	background-color: rgba(0, 0, 0, 0.8);
}

img.img_article {
	
}


.diy_article_descr {
	height: 400px;
	width: 800px;
	margin-top: 10px;
	position: relative ;
	webkit-filter: grayscale(100%);
	filter: grayscale(100%);
	-webkit-transition: filter 0.25s; /* Safari */
    transition: filter 0.25s;
}

.diy_article_descr:hover {
	webkit-filter: grayscale(0%);
	filter: grayscale(0%);
}

.diy_title, .diy_descr_descr {
	color: #DDD;
	opacity: 0;
	width: 770px;
	height: auto;
	position: absolute;
	text-align: left;
	margin: 0;
	padding: 10px 15px;
	background-color: rgba(0, 0, 0, 0.8);

    -webkit-transition: opacity 0.25s; /* Safari */
    transition: opacity 0.25s;
}

.diy_title {
	font-size: 24pt;
	top: 0;
}

.diy_descr_descr {
	font-size: 12pt;
	bottom: 0;
}

.diy_article_descr:hover > .diy_title, .diy_article_descr:hover > .diy_descr_descr {
	opacity: 1;
}



.diy_art_img {
	width: 100%;
	margin: 0 auto;
	display: block;
	left: 0;
	top: 0;
	position: -1;
	box-shadow: 3px 3px 3px rgba(0,0,0,.5);
	border: 1px dotted green;

}

/*.diy_article_descr > img::hover {
	box-shadow: 10px 10px 10px rgba(0,0,0,.5);
}
*/






.article img.mini {
	max-width: 100%;
	max-height: 600px;
	display: block;
	margin: 10px auto;
}

.art_img {
	text-align: center;
	display: block;
	margin: 10px auto 20px auto;
}

.art_img > img {
	box-shadow: 3px 3px 10px rgba(0,0,0,.5);
}

.art_img > .caption {
	font-size: 10pt;
	line-height: 1.25em;
	color: #666;
}

.art_img_multi {
	width: 100%;
	text-align: center;
	/*display: inline-block;*/
}

.art_img_dual {
	text-align: center;
	display: inline-block;
	width: 100%;
}


.art_img_dual>.art_img {
	width: 385px;
	margin: 10px 0 10px 0;
	/*border: 1px solid red;*/
}

.art_img_dual>.art_img:first-child {
	float: left;
}

.art_img_dual>.art_img:last-child {
	float: right;
}

/*.art_img_dual > .art_img {
	margin: 10px 20px;
	max-height: 600px;
	max-width: 350px;
	display: inline-block;
	vertical-align: top;
}*/

.art_img_multi > .art_img > img{
	width: 100%;
}


.youtube_video {
	margin: 10px auto;
	text-align: center;
}

.youtube_video > iframe {
	box-shadow: 3px 3px 10px rgba(0,0,0,.5);
}

.toc > ol {
	list-style-type: arabic-indic;
	background: none;

	padding-left: 15px;
	margin-left: 0px;
}

.calculus {
	font-family: serif;
	width: 100%;
	margin: 10px auto;
	text-align: center;
}

/*.code_frame {
	width: 100%;
	text-align: center;
}

.code_frame > .h_iframe {
	width:80%;
	margin: 10px auto 10px 50px;
}
*/

.code_frame {
	display: block;
	width: 100%;
	height: 300px;
	margin: 0px auto;
	border: solid 1px black;
	box-shadow: 3px 3px 10px rgba(0,0,0,.5);

}

table {
	margin: 10px auto;
	border-collapse: collapse;
}

table, th, td {
	border: 1px solid black;
}

th {
	background-color: rgba(255,255,255,0.5)
}

.table_prices {
	box-shadow: 3px 3px 10px rgba(0,0,0,.5);
}

.table_prices th {
	text-align: left;
	padding: 3px 5px;
}

.table_prices td {
	text-align: right;
}


pre {
    -moz-tab-size:    4; /* Firefox 4+ */
    -o-tab-size:      4; /* Opera 11.5 & 12.1 only */
    tab-size:         4; /* Chrome 21+, Safari 6.1+, Opera 15+ */
}


.sup {
	vertical-align: super;
	color: #666;
	font-size: 9pt;
}