confluence水印；PDF按钮

(function() {
    console.log('Confluence Watermark Remover loaded.');
    var target = document.body;
    var config = { attributes: true, childList: true, characterData: true };
    var observer = new MutationObserver(function(mutations) {
        mutations.forEach(function(mutation) {
            var wm = document.getElementById("wm");
            if (wm) {
                console.log('Watermark Removed.');
                wm.remove();
                observer.disconnect();
            }

            var pdfexport = document.getElementById("action-menu-secondary");

            var aLi = pdfexport.childNodes;//获取ul元素的所有子节点
              for(var i = 0; i < aLi.length; i++){
                   if(aLi[i].nodeType == 1){//判断节点是否为元素节点
                       aLi[i].style.display="inline";
                   }
              }


            //var targetli=pdfexport