add file.

js/bg.js

@@ -0,0 +1,25 @@
+chrome.extension.onRequest.addListener(
+    function (request, sender, sendResponse) {
+        if (request.hello == "btn_del_family") {
+            var bodys = document.querySelectorAll('iframe#ueditor_0')
+            if(bodys&&bodys.length>0&&bodys[0].contentDocument){
+                var body = bodys[0].contentDocument;
+                if(body){
+                    var elms = body.querySelectorAll('code,pre,h1,h2,h3,h4,h5,h6,p,div,span');
+                    for (var i = 0; i < elms.length; i++) {
+                        var styl = elms[i].getAttribute('style');
+                        if(styl){
+                            styl = styl.replace(/font-family\:[\s\S]*?\;/g,'')
+                            elms[i].setAttribute('style',styl)
+                        }
+
+                        if(elms[i].tagName === 'PRE'){
+                            elms[i].setAttribute('style','box-sizing: border-box; margin-top: 0px; margin-bottom: 16px; padding: 5px; border: 0px; outline: 0px; vertical-align: baseline; overflow: auto; border-radius: 3px; word-break: break-all; word-wrap: break-word; font-stretch: normal; line-height: normal; color: rgb(51, 51, 51); background-color: rgb(247, 247, 249); ') 
+                        }
+                    }
+                }
+            }
+            sendResponse({ msg: '更改完毕！！' });
+        }
+    }
+); 

js/popup.js

@@ -0,0 +1,20 @@
+$('.warpper a.btn_del_family').on('click',function(){
+    var self = this 
+    chrome.tabs.getSelected(null, function (tab) {
+        chrome.tabs.sendRequest(tab.id, {"hello": "btn_del_family"}, function (response) {
+            $(self).find('span').html(response.msg);
+            setTimeout(function(){
+                $(self).find('span').html('');
+            }, 2000);
+        });
+    });
+})
+
+$('.warpper a.btn_del_fonts').on('click',function(){
+    console.log("btn_del_fonts");
+    chrome.tabs.getSelected(null, function (tab) {
+        chrome.tabs.sendRequest(tab.id, {"hello": "btn_del_fonts"}, function (response) {
+            console.log("response",response);
+        });
+    });
+})