小米字体

//css引用 
<link rel="stylesheet" href="https://font.sec.miui.com/font/css?family=MiSans:400,700:MiSans" />

//css调用
* {font-family: MiSans}

思源宋字体

//css引用
<link rel="stylesheet" href="https://font.sec.miui.com/font/css?family=Source_Han_Serif:400,600:Source_Han_Serif" />
//css调用
{font-family: Source Han Serif}