не знаю про псевдоэлементы, будут ли они работать, но
function addStyleToHead(c) {
var css = `${c} .blanks a:before,
${c} .zakoni a:before,
${c} .sud_arbitr a:before,
${c} .sud_msk a:before,
${c} .mfc a:before,
${c} .zags_msk a:before,
${c} .notary_msk a:before,
${c} .notary_mo a:before,
${c} .court_practice a:before{
content: none;
}`,
head = document.head || document.getElementsByTagName('head')[0],
style = document.createElement('style');
head.appendChild(style);
style.type = 'text/css';
if (style.styleSheet){
// This is required for IE8 and below.
style.styleSheet.cssText = css;
} else {
style.appendChild(document.createTextNode(css));
}
}
addStyleToHead('.bbb')
