.main_text {
	font-family: "Verdana";
	font-size: 13pt;
	margin-left: 40px;
	margin-right: 40px;
	}
	
.main_text p {
	text-indent: 20px;
	text-align: justify;
}

img.sqrt_img {
        height: 24px;
        width: 30px;
        display: inline-block;
        vertical-align: middle;
}

img.scheme {
	border: 0px;
	width: 600px;
}

div.formula, span.formula {
	font-family: "Courier";
	font-size: 13pt;
	font-weight: bold;
}

.main_text  ul li {
	font-family: "Verdana";
	font-size: 13pt;
	margin-left: 20px;
}

.main_text  hr {
	height: 3px;
	width: 600px;
	margin-left: auto;
	margin-right: auto;
}

.spec_frame {
		background-color : #EEEEE0;
		border-radius: 10px;
		padding: 15px;
		height: auto;
		width: auto;
		margin-left: 20px;
		margin-right: 20px;
		//line-height: 30px;
		white-space: pre;

}

.spec_frame  ul, .spec_frame  p{
		text-align: justify;
}

.spec_frame p {
	margin-left: auto;
	margin-right: auto;
}