移动端设页面根目录HTML的字体大小

@media (max-width: 359px){
html {
font-size: 62.5%;
}
}
@media (min-width: 360px) and (max-width: 374px){
html {
font-size: 70.31251%;
}
}
@media (min-width: 375px) and (max-width: 413px){
html {
font-size: 73.24219%;
}
}
@media (min-width: 414px) {
html {
font-size: 80.85938%;
}
}