body {background-color: #aae6cc;}
<style type="text/css">
   A {
    text-decoration: none;
   } 
   A:hover { 
    text-decoration: underline; 
    color: red; 
   } 
  </style>

a:active {color: #4b84ef;text-decoration: none;}
a:link {color: #0000cf;	text-decoration: none;}
a:visited {	color: #d500ff;	text-decoration: none;}
a:hover {text-decoration: none;	color: #0000c7;}
.conten_link {	font-family: Arial, Helvetica, sans-serif;	font-size: 14px;	font-weight: bold;}

.autor {font-family: Arial, Helvetica, sans-serif;
	font-size: 14px;
	font-style: italic;}
.down_reg {	font-family: Arial, Helvetica, sans-serif;
	font-size: 10px;
	font-style: normal;
	font-weight: bold;
	text-align: justify;
	vertical-align: sub;}
.up_reg {	font-family: Arial, Helvetica, sans-serif;
	font-size: 10px;
	font-style: normal;
	text-transform: none;
	vertical-align: super;
	text-align: justify;}
.main_text {	font-family: Arial, Helvetica, sans-serif;
	font-size: 12px;
	font-style: normal;}
.zaglav {	font-family: Arial, Helvetica, sans-serif;
	font-size: 18px;
	font-style: normal;
	font-weight: bold;}
.Autor_2 {	font-family: Arial, Helvetica, sans-serif;
	font-size: 14px;
	font-style: italic;}
.main_tex_bold {	font-family: Arial, Helvetica, sans-serif;
	font-size: 12px;
	font-style: normal;
	font-weight: bolder;}
.main_text_italik {	font-family: Arial, Helvetica, sans-serif;
	font-size: 12px;
	font-style: italic;}
.up_reg_08 {	font-family: Arial, Helvetica, sans-serif;
	font-size: 8px;
	font-style: normal;
	text-align: justify;
	vertical-align: super;}
.main_text_10 {	font-family: Arial, Helvetica, sans-serif;
	font-size: 10px;
	font-style: normal;}
.new_red {	font-family: Arial, Helvetica, sans-serif;
	font-size: 12px;
	font-style: italic;
	color: #FF0000;
	text-align: justify;
	vertical-align: super;}
.Zaglav_2 {	font-family: Arial, Helvetica, sans-serif;
	font-size: 18px;
	font-weight: normal;}
.number {	font-family: "Times New Roman", Times, serif;
	font-size: 16px;
	font-weight: bold;}
.big_number {	font-family: "Times New Roman", Times, serif;
	font-size: 24px;
	font-weight: bolder;
	font-style: normal;}