Learn the Web front-end technology notes, only for yourself to check the memo, mobile control of the Font-size (not original)

Assuming that the value of root font font-size is 40px, 640/40=16,16 is the value of PX conversion REM

function Inithtmlfontsize () {

Get but width

var _width=documnet.body.clientwidth;

Judge

_width= _width > 640? 640:_width;

The value of the current font-size

var _fs=_width/16;

assigning to HTML nodes

document.getElementsByTagName (' HTML ') [0].style.fontsize=_fs + ' px ';

}

Inithtmlfontsize ()

Learn the Web front-end technology notes, only for yourself to check the memo, mobile control of the Font-size (not original)