body{
font: 12px/1.231 Microsoft YaHei;
    font-size: 63%;
}
a{text-decoration:none; color:#666;}
@media screen and (min-width:320px) {
    html{font-size:75%;}
}
@media screen and (min-width:375px) {
    html{font-size:87.5%;}
}
@media screen and (min-width:480px) {
    html{font-size:87.5%;}
}
@media screen and (min-width:540px) {
    html{font-size:112.5%;}
}
@media screen and (min-width:550px) {
    html{font-size:125%;}
}
@media screen and (min-width:640px) {
    html{font-size:150%;}
}
h1,h2,h3,h4,h5,h6 {
	
	padding: 0;
	margin: 0;

}