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function setRem(){
var is_horizontal = 1, remNum = 13.34, c_width;
if(request('is_horizontal')){
is_horizontal = request('is_horizontal');
}
if(is_horizontal == 0){
remNum = 7.5;
}
c_width = document.documentElement.clientWidth;
document.querySelector('html').style.fontSize = (c_width/remNum > 80 ? 80 + 'px' : c_width/remNum + 'px');
};