var css = document.createElement('style'); css.type = 'text/css'; var styles = `.mobile-nav-toggle-wrapper .navbar-toggler { color: #000; } .navbar.normalmenu .brand-wrapper picture { vertical-align: middle; }`; if (css.styleSheet) css.styleSheet.cssText = styles; else css.appendChild(document.createTextNode(styles)); document.getElementsByTagName("head")[0].appendChild(css);