Emmet 也有快速生成文件头的功能啊，而且更强大啊。输入下边加粗的缩写，然后Tab，就OK了啊。

html:4t





Document


${child}


html:4s






Document


${child}


html:xt









${child}

html:xs






Document


${child}

html:xxs





Document


${child}

html:5





Document


${child}