body{
	counter-reset:section;
	font-size:14;
}
h1{
	counter-reset:subsection;
	font-size:18;
	color:blue;
}
h2{
	counter-reset:subsubsection;
	font-size:16;

}
h3{
	font-size:14;
}
h1::before{
	counter-increment:section;
	content:"Section  "    counter(section)". ";
}
h2::before{
	counter-increment:subsection;
	content:counter(section) "." counter(subsection) " ";
}
h3::before{
	counter-increment:subsubsection;
	content:counter(section) "." counter(subsection) "." counter(subsubsection) " ";
}
b{
	color:red;
}
pre{
	font-size:14;
}
table,th,td{
	border: 1px solid black;
}
table{
	border-collapse: collapse;
	width: 100%;
}
th,td{
	text-align: left;
	padding: 10px;
}
p{
line-height:200%;
}