demo链接下载(喜欢就送颗真心撒):

rem自适应移动端通用样式下载
/*移动px换算rem*/
@media screen and (min-width:320px) {
    html {
        font-size:42.67px
    }
}
@media screen and (min-width:360px) {
    html {
        font-size:48px
    }
}
@media screen and (min-width:375px) {
    html {
        font-size:50px
    }
}
@media screen and (min-width:414px) {
    html {
        font-size:55.2px
    }
}
@media screen and (min-width:480px) {
    html {
        font-size:64px
    }
}
@media screen and (min-width:640px) {
    html {
        font-size:85.33px
    }
}
@media screen and (min-width:750px) {
    html {
        font-size:100px
    }
}