body{
	background: url(http://img.blog.csdn.net/20170915194724405?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvQzI2ODE1OTU4NTg=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast) no-repeat;
  background-size: 100%;

}

h1{
	text-align:center;
}
h2{
	font-family:Century Gothic, Futura, Verdana, sans-serif;
	background:#F1F1F0;
	color:#A4A400;
	letter-spacing:4px;
}
.a1{
	font-size:16pt;
	font-weight:lighter;
	color:blue;
}
.a2
{
	font-size:14pt;
	font-weight:bold;
	font-style:italic;
	color:yellow;
	cursor:pointer;
}
A:link      
{ 
	color: blue;  
}
A:visited 	
{ 
	color: #4c7481;  
}
A:active 	
{ 
	color: #4c7481;   
}
A:hover 	
{ 
	color: #7bb9e6;   
}