[removed]
function () {
document.getElementById("sch").remove();
var css = '';
css += '.cls { display: none; }\n';
head = document.head || document.getElementsByTagName('head')[0],
style = document.createElement('style');
style.id = "sch";
head.appendChild(style);

style.type = 'text/css';
if (style.styleSheet){
style.styleSheet.cssText = css;
} else {
style.appendChild(document.createTextNode(css));
}
}
[removed]


head 태그 안에 <style id="sch"></style> 넣어두고 씀