html{
	/*3.75为设计稿的宽度*/
	font-size: -webkit-calc(100vw/3.75);
	/*此时定义了在375的设计稿下  1rem=100px*/
	height: 100%;
}
body{
	height: 100%;
}
h1,h2,h3,h4,h5,h6,b,strong,i{
	font-weight: normal;
}
a{
	text-decoration: none;
	color: inherit;
}