A:link {
	COLOR: #191970; TEXT-DECORATION: none; font-weight: bold
}
A:visited {
	COLOR: #191970; TEXT-DECORATION: none; font-weight: bold

}
A:active {
	COLOR:  #9400d3; TEXT-DECORATION: none; font-weight: bold
}
A:hover {
	COLOR: #0000ff; font-weight: bold
}
<!-- the name of chapter (Binary search, Number Pi, ... -->
DIV.n {
	FONT-FAMILY:  "Times New Roman", Times; FONT-SIZE: 19px; color: #3F1700; text-align: left; font-weight: bold
}
<!-- the name of paragraph -->
DIV.k {
	FONT-FAMILY: "Times New Roman", Times; FONT-SIZE: 23px; color: #000000; text-align: center
}
<!-- text -->
DIV.t  {
	FONT-FAMILY: "Times New Roman", Times; FONT-SIZE: 17px; color: black; text-align: justify
}
<!-- italic in text -->
.it  {
	FONT-FAMILY: "Times New Roman", Times; FONT-SIZE: 15px; color: #3F1700; font-style: italic
}
<!-- the code of program -->
DIV.p {
	FONT-FAMILY: "Courier New", Monospace; FONT-SIZE: 13px; color: #000000
}
<!-- the code of program centered on row -->
DIV.pc {
	FONT-FAMILY: "Courier New", Monospace; FONT-SIZE: 15px; color: #3F1700; text-align: center
}
<!-- the code of program in text -->
.tt {
	FONT-FAMILY: "Courier New", Monospace; FONT-SIZE: 15px; color: #3F1700; text-align: justify
}
<!- exercise -->
.x {
	FONT-FAMILY: "Times New Roman", Times; FONT-SIZE: 17px; color: #4169e1; font-weight: bold; text-align: left
}
<!- prolog -->
div.g {
	FONT-FAMILY: "Times New Roman", Times; FONT-SIZE: 17px; color:  black; text-align: justify; font-weight: bold 
}
<!- bold -->
.b  {
	FONT-FAMILY: "Times New Roman", Times; FONT-SIZE: 16px; color: black; font-weight: bold
}
<!-- smaller text -->
DIV.l  {
	FONT-FAMILY: "Times New Roman", Times; FONT-SIZE: 14px; color: black; text-align: justify
}
<!-- smaller capital letters -->
.c  {
	FONT-FAMILY: "Times New Roman", Times; FONT-SIZE: 13px; color: black
}
<!-- bigger capital letters -->
.bc  {
	FONT-FAMILY: "Times New Roman", Times; FONT-SIZE: 15px; color: black; text-align: justify
}
<!-- the publisher in the paragraph Literature -->
DIV.v  {
	FONT-FAMILY: "Times New Roman", Times; FONT-SIZE: 15px; color: #664400
}
<!-- date of modification, copyright and my name in the last paragraph  -->
DIV.a  {
	FONT-FAMILY: "Times New Roman", Times; FONT-SIZE: 14px; color: #664400; text-align: center
}
<!-- the name of table  (in th)  -->
.th  {
	FONT-FAMILY: Arial; FONT-SIZE: 17px; color: #ffffff; text-align: center
}
<!-- the name of column  of table (in td)  -->
.td  {
	FONT-FAMILY: "Times New Roman", Times; FONT-SIZE: 16px; color: #ffffff; text-align: center; font-weight: bold

}
<!-- the small courier letter in tables -->
.ts  {
	FONT-FAMILY: "Courier New", Monospace; FONT-SIZE: 15px; color: black; text-align: right
}
<!-- the small times letter in tables -->
.tx  {
	FONT-FAMILY: "Times New Roman", Times; FONT-SIZE: 15px; color: black; text-align: LEFT
}
<!-- verdana -->
.ve  {
	FONT-FAMILY: Verdana, Helvetica; FONT-SIZE: 18px; color: #8b0000; text-align: left
}